Solve for x
x=\frac{8y}{7}
Solve for y
y=\frac{7x}{8}
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7x=8y
Add 8y to both sides. Anything plus zero gives itself.
\frac{7x}{7}=\frac{8y}{7}
Divide both sides by 7.
x=\frac{8y}{7}
Dividing by 7 undoes the multiplication by 7.
-8y=-7x
Subtract 7x from both sides. Anything subtracted from zero gives its negation.
\frac{-8y}{-8}=-\frac{7x}{-8}
Divide both sides by -8.
y=-\frac{7x}{-8}
Dividing by -8 undoes the multiplication by -8.
y=\frac{7x}{8}
Divide -7x by -8.
Examples
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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