Solve for x
x=\frac{32-y_{3}}{5}
Solve for y_3
y_{3}=32-5x
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5x=32-y_{3}
Subtract y_{3} from both sides.
\frac{5x}{5}=\frac{32-y_{3}}{5}
Divide both sides by 5.
x=\frac{32-y_{3}}{5}
Dividing by 5 undoes the multiplication by 5.
y_{3}=32-5x
Subtract 5x from both sides.
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