5-n-7n=-91

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Solution for 5-n-7n=-91 equation:


Simplifying
5 + -1n + -7n = -91

Combine like terms: -1n + -7n = -8n
5 + -8n = -91

Solving
5 + -8n = -91

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + -8n = -91 + -5

Combine like terms: 5 + -5 = 0
0 + -8n = -91 + -5
-8n = -91 + -5

Combine like terms: -91 + -5 = -96
-8n = -96

Divide each side by '-8'.
n = 12

Simplifying
n = 12

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