Solve for x
x=10-4y
Solve for y
y=-\frac{x}{4}+\frac{5}{2}
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2x=20-8y
Subtract 8y from both sides.
\frac{2x}{2}=\frac{20-8y}{2}
Divide both sides by 2.
x=\frac{20-8y}{2}
Dividing by 2 undoes the multiplication by 2.
x=10-4y
Divide 20-8y by 2.
8y=20-2x
Subtract 2x from both sides.
\frac{8y}{8}=\frac{20-2x}{8}
Divide both sides by 8.
y=\frac{20-2x}{8}
Dividing by 8 undoes the multiplication by 8.
y=-\frac{x}{4}+\frac{5}{2}
Divide 20-2x by 8.
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