Solve for y
y=\frac{-x-4}{9}
Solve for x
x=-9y-4
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9y=-4-x
Subtract x from both sides.
9y=-x-4
The equation is in standard form.
\frac{9y}{9}=\frac{-x-4}{9}
Divide both sides by 9.
y=\frac{-x-4}{9}
Dividing by 9 undoes the multiplication by 9.
x=-4-9y
Subtract 9y from both sides.
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