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\frac{15}{8}-3y=-4x
Multiply \frac{1}{8} and 15 to get \frac{15}{8}.
-4x=\frac{15}{8}-3y
Swap sides so that all variable terms are on the left hand side.
\frac{-4x}{-4}=\frac{\frac{15}{8}-3y}{-4}
Divide both sides by -4.
x=\frac{\frac{15}{8}-3y}{-4}
Dividing by -4 undoes the multiplication by -4.
x=\frac{3y}{4}-\frac{15}{32}
Divide \frac{15}{8}-3y by -4.
\frac{15}{8}-3y=-4x
Multiply \frac{1}{8} and 15 to get \frac{15}{8}.
-3y=-4x-\frac{15}{8}
Subtract \frac{15}{8} from both sides.
\frac{-3y}{-3}=\frac{-4x-\frac{15}{8}}{-3}
Divide both sides by -3.
y=\frac{-4x-\frac{15}{8}}{-3}
Dividing by -3 undoes the multiplication by -3.
y=\frac{4x}{3}+\frac{5}{8}
Divide -4x-\frac{15}{8} by -3.