Solve for x
x=\frac{31}{8}-y
Solve for y
y=\frac{31}{8}-x
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-x+\frac{31}{8}=y
Swap sides so that all variable terms are on the left hand side.
-x=y-\frac{31}{8}
Subtract \frac{31}{8} from both sides.
\frac{-x}{-1}=\frac{y-\frac{31}{8}}{-1}
Divide both sides by -1.
x=\frac{y-\frac{31}{8}}{-1}
Dividing by -1 undoes the multiplication by -1.
x=\frac{31}{8}-y
Divide y-\frac{31}{8} by -1.
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