Solve for n
n=40
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80=2+2n-2
Use the distributive property to multiply n-1 by 2.
80=2n
Subtract 2 from 2 to get 0.
2n=80
Swap sides so that all variable terms are on the left hand side.
n=\frac{80}{2}
Divide both sides by 2.
n=40
Divide 80 by 2 to get 40.
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