Solve for n
n=\frac{2x+55}{3}
Solve for x
x=\frac{3n-55}{2}
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2x=3n-55
Subtract 70 from 15 to get -55.
3n-55=2x
Swap sides so that all variable terms are on the left hand side.
3n=2x+55
Add 55 to both sides.
\frac{3n}{3}=\frac{2x+55}{3}
Divide both sides by 3.
n=\frac{2x+55}{3}
Dividing by 3 undoes the multiplication by 3.
2x=3n-55
Subtract 70 from 15 to get -55.
\frac{2x}{2}=\frac{3n-55}{2}
Divide both sides by 2.
x=\frac{3n-55}{2}
Dividing by 2 undoes the multiplication by 2.
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