Solve for n
n=5
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-21n+49=-31-5n
Use the distributive property to multiply -7 by 3n-7.
-21n+49+5n=-31
Add 5n to both sides.
-16n+49=-31
Combine -21n and 5n to get -16n.
-16n=-31-49
Subtract 49 from both sides.
-16n=-80
Subtract 49 from -31 to get -80.
n=\frac{-80}{-16}
Divide both sides by -16.
n=5
Divide -80 by -16 to get 5.
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Limits
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