Solve for x
x=\frac{y-6}{3}
Solve for y
y=3\left(x+2\right)
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12x+36=4y+12
Swap sides so that all variable terms are on the left hand side.
12x=4y+12-36
Subtract 36 from both sides.
12x=4y-24
Subtract 36 from 12 to get -24.
\frac{12x}{12}=\frac{4y-24}{12}
Divide both sides by 12.
x=\frac{4y-24}{12}
Dividing by 12 undoes the multiplication by 12.
x=\frac{y}{3}-2
Divide -24+4y by 12.
4y=12x+36-12
Subtract 12 from both sides.
4y=12x+24
Subtract 12 from 36 to get 24.
\frac{4y}{4}=\frac{12x+24}{4}
Divide both sides by 4.
y=\frac{12x+24}{4}
Dividing by 4 undoes the multiplication by 4.
y=3x+6
Divide 24+12x by 4.
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