Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
17301	Solve by Substitution	3x-4y=9 , 4x+12y=25	$3 x - 4 y = 9$ , $4 x + 12 y = 25$
17302	Solve by Substitution	3x-6y+6z=-3 , -6+12y-12z=6 , 6x-12y+12z=-6	$3 x - 6 y + 6 z = - 3$ , $- 6 + 12 y - 12 z = 6$ , $6 x - 12 y + 12 z = - 6$
17303	Solve by Substitution	3x-y=0 , 5x+2y=22	$3 x - y = 0$ , $5 x + 2 y = 22$
17304	Solve by Substitution	3x-y=2 , 6x+3y=14	$3 x - y = 2$ , $6 x + 3 y = 14$
17305	Solve by Substitution	3x-y=4 , 6x-2y=12	$3 x - y = 4$ , $6 x - 2 y = 12$
17306	Solve by Substitution	3x-y=5 , 6x+ky=6	$3 x - y = 5$ , $6 x + k y = 6$
17307	Solve by Substitution	4x-7x^2+5x^3=35 , 2x-x^2+3x^3=5 , 3x^2-x^3=-11	$4 x - 7 x^{2} + 5 x^{3} = 35$ , $2 x - x^{2} + 3 x^{3} = 5$ , $3 x^{2} - x^{3} = - 11$
17308	Solve by Substitution	490=x+y , 1150=3x+1y	$490 = x + y$ , $1150 = 3 x + 1 y$
17309	Solve by Substitution	4a+3b+c=-34 , a-3b+2c=-4 , 11a-2b+3c=-54	$4 a + 3 b + c = - 34$ , $a - 3 b + 2 c = - 4$ , $11 a - 2 b + 3 c = - 54$
17310	Solve by Substitution	4x1-x2=11 , x1+3x2=6	$4 x \cdot 1 - x \cdot 2 = 11$ , $x \cdot 1 + 3 x \cdot 2 = 6$
17311	Solve by Substitution	4x+0y=3 , 0x+6y=-5	$4 x + 0 y = 3$ , $0 x + 6 y = - 5$
17312	Solve by Substitution	4x+2y=-4 , -12x-6y=12	$4 x + 2 y = - 4$ , $- 12 x - 6 y = 12$
17313	Solve by Substitution	4x+3y=20 , 4x+8y=32	$4 x + 3 y = 20$ , $4 x + 8 y = 32$
17314	Solve by Substitution	4x+y=40 , x+2y=35	$4 x + y = 40$ , $x + 2 y = 35$
17315	Solve by Substitution	4x-10=7 , 8x-20=14	$4 x - 10 = 7$ , $8 x - 20 = 14$
17316	Solve by Substitution	4x-2y=34 , 5x+4y=-16	$4 x - 2 y = 34$ , $5 x + 4 y = - 16$
17317	Solve by Substitution	4x-2y=-36 , 3x+6y=33	$4 x - 2 y = - 36$ , $3 x + 6 y = 33$
17318	Solve by Substitution	4x-2y=-8 , x+y=-5	$4 x - 2 y = - 8$ , $x + y = - 5$
17319	Solve by Substitution	4x-3y=3 , -x-3y=3	$4 x - 3 y = 3$ , $- x - 3 y = 3$
17320	Solve by Substitution	4x-y=6 , x+y=3	$4 x - y = 6$ , $x + y = 3$
17321	Solve by Substitution	5(4x+y)-(x-3y)=-5 , 2(x-2y)+(2x-y)=19	$5 (4 x + y) - (x - 3 y) = - 5$ , $2 (x - 2 y) + (2 x - y) = 19$
17322	Solve by Substitution	5p+11q=-7 , 3p-8q=25	$5 p + 11 q = - 7$ , $3 p - 8 q = 25$
17323	Solve by Substitution	5x1-2x2=-9 , 15x1-6x2=-27	$5 x \cdot 1 - 2 x \cdot 2 = - 9$ , $15 x \cdot 1 - 6 x \cdot 2 = - 27$
17324	Solve by Substitution	5x+3y=15 , x+4y=5	$5 x + 3 y = 15$ , $x + 4 y = 5$
17325	Solve by Substitution	5x+3y=18 , x+12y=42	$5 x + 3 y = 18$ , $x + 12 y = 42$
17326	Solve by Substitution	5x+3y=30 , x-3y=0 , x=2	$5 x + 3 y = 30$ , $x - 3 y = 0$ , $x = 2$
17327	Solve by Substitution	-5x+7y-z=4 , x+8y+2z=-1 , 6x+4z=8	$- 5 x + 7 y - z = 4$ , $x + 8 y + 2 z = - 1$ , $6 x + 4 z = 8$
17328	Solve by Substitution	5x+y=40 , x+y=30	$5 x + y = 40$ , $x + y = 30$
17329	Solve by Substitution	5x-2y=20 , 10x-4y=-40	$5 x - 2 y = 20$ , $10 x - 4 y = - 40$
17330	Solve by Substitution	5x-y=0 , 3x+y=8	$5 x - y = 0$ , $3 x + y = 8$
17331	Solve by Substitution	5xy=2d , x*x=d	$5 x y = 2 d$ , $x \cdot x = d$
17332	Solve by Substitution	5x-y=60 , 23x+14y=20	$5 x - y = 60$ , $23 x + 14 y = 20$
17333	Solve by Substitution	5x-y=8 , y=6-2x	$5 x - y = 8$ , $y = 6 - 2 x$
17334	Solve by Substitution	68=2x+3y , 25=x+y	$68 = 2 x + 3 y$ , $25 = x + y$
17335	Solve by Substitution	68=2x+3y , x+y=25	$68 = 2 x + 3 y$ , $x + y = 25$
17336	Solve by Substitution	6x+3y=-42 , x=15-6y	$6 x + 3 y = - 42$ , $x = 15 - 6 y$
17337	Solve by Substitution	6x+4y=-12 , -3x-2y=6	$6 x + 4 y = - 12$ , $- 3 x - 2 y = 6$
17338	Solve by Substitution	6x+5y=30 , 10x+y=30	$6 x + 5 y = 30$ , $10 x + y = 30$
17339	Solve by Substitution	6x+9y=300 , 5x+4y=180	$6 x + 9 y = 300$ , $5 x + 4 y = 180$
17340	Solve by Substitution	6x+y=24 , x+2y=21	$6 x + y = 24$ , $x + 2 y = 21$
17341	Solve by Substitution	-6x-10y=7 , -10x-3y=1	$- 6 x - 10 y = 7$ , $- 10 x - 3 y = 1$
17342	Solve by Substitution	6x-4y=14 , 5x+7y=-9	$6 x - 4 y = 14$ , $5 x + 7 y = - 9$
17343	Solve by Substitution	6x-6y+z=6 , x+y=7	$6 x - 6 y + z = 6$ , $x + y = 7$
17344	Find the Distance Between Two Points	(-5,-2) , (-4,11)	$(- 5, - 2) (- 4, 11)$
17345	Find the Distance Between Two Points	(-5,4) , (-3,6)	$(- 5, 4) (- 3, 6)$
17346	Find the Distance Between Two Points	(5,6) , (-4,7)	$(5, 6)$ , $(- 4, 7)$
17347	Find the Distance Between Two Points	(-5,7) , (-4,-6)	$(- 5, 7) (- 4, - 6)$
17348	Find the Distance Between Two Points	(6,0) , (4,0)	$(6, 0)$ , $(4, 0)$
17349	Find the Distance Between Two Points	(6,-1) , (-2,7)	$(6, - 1)$ , $(- 2, 7)$
17350	Find the Distance Between Two Points	(6,6) , (13,8)	$(6, 6)$ , $(13, 8)$
17351	Find the Distance Between Two Points	(-6,8) , (-8,-6)	$(- 6, 8)$ , $(- 8, - 6)$
17352	Find the Distance Between Two Points	(-7,2) , (-3,1)	$(- 7, 2) (- 3, 1)$
17353	Find the Distance Between Two Points	(7,2) , (-1,4)	$(7, 2)$ , $(- 1, 4)$
17354	Find the Distance Between Two Points	(7,-7) , (3,-5)	$(7, - 7) (3, - 5)$
17355	Find the Distance Between Two Points	(7,-7) , (7,4)	$(7, - 7) (7, 4)$
17356	Find the Distance Between Two Points	(8,-2) , (0,-3)	$(8, - 2) (0, - 3)$
17357	Find the Distance Between Two Points	(-8,7) , (1,7)	$(- 8, 7) (1, 7)$
17358	Find the Distance Between Two Points	(-9,3) , (-3,-8)	$(- 9, 3)$ , $(- 3, - 8)$
17359	Find the Distance Between Two Points	(9,8) , (9,3)	$(9, 8)$ , $(9, 3)$
17360	Find the Distance Between Two Points	(-5,-3) , (5,-7)	$A (- 5, - 3)$ , $B (5, - 7)$
17361	Find the Distance Between Two Points	( square root of 5,0) , (0,2)	$p (\sqrt{5}, 0)$ , $q (0, 2)$
17362	Solve by Substitution	(x)=0.2x+120 , (x)=0.4x	$(x) = 0.2 x + 120$ , $(x) = 0.4 x$
17363	Solve by Substitution	0.2x-0.5y=-0.6 , 0.5x-0.2y=-1.5	$0.2 x - 0.5 y = - 0.6$ , $0.5 x - 0.2 y = - 1.5$
17364	Solve by Substitution	(dy)/(dt)*x^2+3y^2+4y=11 , (dx)/(dt)=7 , x=3 , y=-3	$\frac{d y}{d t} \cdot x^{2} + 3 y^{2} + 4 y = 11$ , $\frac{d x}{d t} = 7$ , $x = 3$ , $y = - 3$
17365	Solve by Substitution	x/a-y/b=a-b , ax+by=a^3+b^3	$\frac{x}{a} - \frac{y}{b} = a - b$ , $a x + b y = a^{3} + b^{3}$
17366	Solve by Substitution	x^2-y^2=21 , 2x^2+y^2=79	$x^{2} - y^{2} = 21$ , $2 x^{2} + y^{2} = 79$
17367	Solve by Substitution	x^2+y^2=25 , x^2+4y^2=52	$x^{2} + y^{2} = 25$ , $x^{2} + 4 y^{2} = 52$
17368	Solve by Substitution	x^2+2y^2=6 , 2x^2-3y^2=5	$x^{2} + 2 y^{2} = 6$ , $2 x^{2} - 3 y^{2} = 5$
17369	Solve by Substitution	0.1A+0.4B=35 , 0.08+0.4B=7	$0.1 A + 0.4 B = 35$ , $0.08 + 0.4 B = 7$
17370	Solve by Substitution	0.36=398a+b , 0.87=568a+b , 0.36=0.003a	$0.36 = 398 a + b$ , $0.87 = 568 a + b$ , $0.36 = 0.003 a$
17371	Solve by Substitution	0.4x-0.7y=0.66 , -0.3x-0.6y=0.18	$0.4 x - 0.7 y = 0.66$ , $- 0.3 x - 0.6 y = 0.18$
17372	Solve by Substitution	0.5x+y=20000000 , x=5000000 , y=10000000 , x+y=25000000	$0.5 x + y = 20000000$ , $x = 5000000$ , $y = 10000000$ , $x + y = 25000000$
17373	Solve by Substitution	10x+20y+6z=440 , 10x+8y+28Z=248	$10 x + 20 y + 6 z = 440$ , $10 x + 8 y + 28 Z = 248$
17374	Solve by Substitution	-10x+6y=6 , 3x+3y=15	$- 10 x + 6 y = 6$ , $3 x + 3 y = 15$
17375	Solve by Substitution	10x-4y=-2 , -25x+10y=5	$10 x - 4 y = - 2$ , $- 25 x + 10 y = 5$
17376	Solve by Substitution	12x+4y=44 , y=11-3x	$12 x + 4 y = 44$ , $y = 11 - 3 x$
17377	Solve by Substitution	144=a(1)^2+b(1)+128 , 0=a(4)^2+b(4)+128	$144 = a {(1)}^{2} + b (1) + 128$ , $0 = a {(4)}^{2} + b (4) + 128$
17378	Solve by Substitution	15x+12y=3 , 35x+28y=7	$15 x + 12 y = 3$ , $35 x + 28 y = 7$
17379	Solve by Substitution	15x=5y+5 , y=2x+1	$15 x = 5 y + 5$ , $y = 2 x + 1$
17380	Solve by Substitution	2.40x+0.080y=144 , x+y=100	$2.4 x + 0.08 y = 144$ , $x + y = 100$
17381	Solve by Substitution	2x^2+y^2=18 , xy=4	$2 x^{2} + y^{2} = 18$ , $x y = 4$
17382	Solve by Substitution	21x-9y=15 , 7x=3y+5	$21 x - 9 y = 15$ , $7 x = 3 y + 5$
17383	Solve by Substitution	250x+450y=4190 , 301x+390y=3700 , 382x+289y=4404	$250 x + 450 y = 4190$ , $301 x + 390 y = 3700$ , $382 x + 289 y = 4404$
17384	Solve by Substitution	2p+5q=100 , p-2q=20	$2 p + 5 q = 100$ , $p - 2 q = 20$
17385	Solve by Substitution	2x+1y=350 , 3x+3y=600	$2 x + 1 y = 350$ , $3 x + 3 y = 600$
17386	Solve by Substitution	2x+3y=90 , x=0 , y=0 , 3x+2y=100	$2 x + 3 y = 90$ , $x = 0$ , $y = 0$ , $3 x + 2 y = 100$
17387	Solve by Substitution	2x+3y-z=2 , 3x+5y+z=5	$2 x + 3 y - z = 2$ , $3 x + 5 y + z = 5$
17388	Solve by Substitution	-2x+4y=26 , -10x+5y=-20	$- 2 x + 4 y = 26$ , $- 10 x + 5 y = - 20$
17389	Solve by Substitution	2x+4y=480 , 5x+3y=675	$2 x + 4 y = 480$ , $5 x + 3 y = 675$
17390	Solve by Substitution	2x+4y=6 , 4x+4y=16	$2 x + 4 y = 6$ , $4 x + 4 y = 16$
17391	Solve by Substitution	2x+5y=1 , 4x+10y=2	$2 x + 5 y = 1$ , $4 x + 10 y = 2$
17392	Solve by Substitution	2x+5y=10 , x-y=5 , 3x+y=6	$2 x + 5 y = 10$ , $x - y = 5$ , $3 x + y = 6$
17393	Solve by Substitution	2x+5y=23 , x+10y=49	$2 x + 5 y = 23$ , $x + 10 y = 49$
17394	Solve by Substitution	2x+5y=26 , -3x-4y=-25	$2 x + 5 y = 26$ , $- 3 x - 4 y = - 25$
17395	Solve by Substitution	2x+5y-2z=14 , 5x-6y+2z=0 , 4x-y+3z=-7	$2 x + 5 y - 2 z = 14$ , $5 x - 6 y + 2 z = 0$ , $4 x - y + 3 z = - 7$
17396	Solve by Substitution	-2x+9y=17 , -x-2y=2 , 7x+y=38 , x+4y=27	$- 2 x + 9 y = 17$ , $- x - 2 y = 2$ , $7 x + y = 38$ , $x + 4 y = 27$
17397	Solve by Substitution	2x+y=10 , x+2y=8	$2 x + y = 10$ , $x + 2 y = 8$
17398	Solve by Substitution	2x+y=20 , x+2y=16	$2 x + y = 20$ , $x + 2 y = 16$
17399	Solve by Substitution	2x+y=26 , 2x+3y=38	$2 x + y = 26$ , $2 x + 3 y = 38$
17400	Solve by Substitution	2x+y=3 , -2x+4y=12	$2 x + y = 3$ , $- 2 x + 4 y = 12$