Solve for x
x=20-3y
Solve for y
y=\frac{20-x}{3}
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2x=40-6y
Subtract 6y from both sides.
\frac{2x}{2}=\frac{40-6y}{2}
Divide both sides by 2.
x=\frac{40-6y}{2}
Dividing by 2 undoes the multiplication by 2.
x=20-3y
Divide 40-6y by 2.
6y=40-2x
Subtract 2x from both sides.
\frac{6y}{6}=\frac{40-2x}{6}
Divide both sides by 6.
y=\frac{40-2x}{6}
Dividing by 6 undoes the multiplication by 6.
y=\frac{20-x}{3}
Divide 40-2x by 6.
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