Basic Math Examples

Solve for y 2/3=7/y
23=7y23=7y
Step 1
Rewrite the equation as 7y=237y=23.
7y=237y=23
Step 2
Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.
73=y273=y2
Step 3
Solve the equation for yy.
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Step 3.1
Rewrite the equation as y2=73y2=73.
y2=73y2=73
Step 3.2
Multiply 77 by 33.
y2=21y2=21
Step 3.3
Divide each term in y2=21y2=21 by 22 and simplify.
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Step 3.3.1
Divide each term in y2=21y2=21 by 22.
y22=212y22=212
Step 3.3.2
Simplify the left side.
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Step 3.3.2.1
Cancel the common factor of 22.
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Step 3.3.2.1.1
Cancel the common factor.
y22=212
Step 3.3.2.1.2
Divide y by 1.
y=212
y=212
y=212
y=212
y=212
Step 4
The result can be shown in multiple forms.
Exact Form:
y=212
Decimal Form:
y=10.5
Mixed Number Form:
y=1012
 [x2  12  π  xdx ]