Solve for n
n=35
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-81=21-3n+3
Use the distributive property to multiply n-1 by -3.
-81=24-3n
Add 21 and 3 to get 24.
24-3n=-81
Swap sides so that all variable terms are on the left hand side.
-3n=-81-24
Subtract 24 from both sides.
-3n=-105
Subtract 24 from -81 to get -105.
n=\frac{-105}{-3}
Divide both sides by -3.
n=35
Divide -105 by -3 to get 35.
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