8-7n+3n=15-91

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Solution for 8-7n+3n=15-91 equation:


Simplifying
8 + -7n + 3n = 15 + -91

Combine like terms: -7n + 3n = -4n
8 + -4n = 15 + -91

Combine like terms: 15 + -91 = -76
8 + -4n = -76

Solving
8 + -4n = -76

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + -4n = -76 + -8

Combine like terms: 8 + -8 = 0
0 + -4n = -76 + -8
-4n = -76 + -8

Combine like terms: -76 + -8 = -84
-4n = -84

Divide each side by '-4'.
n = 21

Simplifying
n = 21

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