Algebra Examples

Maximize the Equation given the Constraints
x+5y=4xx+5y=4x , x>yx>y
Step 1
Introduce slack variables uu and vv to replace the inequalities with equations.
x-Z=yxZ=y
-3x+5y=03x+5y=0
Step 2
Subtract yy from both sides of the equation.
x-Z-y=0,-3x+5y=0xZy=0,3x+5y=0
Step 3
Write the system of equations in matrix form.
[1-100-3500][11003500]
Step 4
Find the reduced row echelon form.
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Step 4.1
Perform the row operation R2=R2+3R1R2=R2+3R1 to make the entry at 2,12,1 a 00.
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Step 4.1.1
Perform the row operation R2=R2+3R1R2=R2+3R1 to make the entry at 2,12,1 a 00.
[1-100-3+315+3-10+300+30][11003+315+310+300+30]
Step 4.1.2
Simplify R2R2.
[1-1000200][11000200]
[1-1000200][11000200]
Step 4.2
Multiply each element of R2R2 by 1212 to make the entry at 2,22,2 a 11.
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Step 4.2.1
Multiply each element of R2R2 by 1212 to make the entry at 2,22,2 a 11.
[1-10002220202][110002220202]
Step 4.2.2
Simplify R2R2.
[1-1000100][11000100]
[1-1000100][11000100]
Step 4.3
Perform the row operation R1=R1+R2R1=R1+R2 to make the entry at 1,21,2 a 00.
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Step 4.3.1
Perform the row operation R1=R1+R2R1=R1+R2 to make the entry at 1,21,2 a 00.
[1+0-1+110+00+00100][1+01+110+00+00100]
Step 4.3.2
Simplify R1R1.
[10000100][10000100]
[10000100][10000100]
[10000100][10000100]
Step 5
Use the result matrix to declare the final solutions to the system of equations.
x=0x=0
y=0y=0
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