Solve for x
x=-3y-10
Solve for y
y=\frac{-x-10}{3}
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-3x=30+9y
Add 9y to both sides.
-3x=9y+30
The equation is in standard form.
\frac{-3x}{-3}=\frac{9y+30}{-3}
Divide both sides by -3.
x=\frac{9y+30}{-3}
Dividing by -3 undoes the multiplication by -3.
x=-3y-10
Divide 30+9y by -3.
-9y=30+3x
Add 3x to both sides.
-9y=3x+30
The equation is in standard form.
\frac{-9y}{-9}=\frac{3x+30}{-9}
Divide both sides by -9.
y=\frac{3x+30}{-9}
Dividing by -9 undoes the multiplication by -9.
y=\frac{-x-10}{3}
Divide 30+3x by -9.
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