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