4-7n-n=12

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Solution for 4-7n-n=12 equation: 


Simplifying
4 + -7n + -1n = 12

Combine like terms: -7n + -1n = -8n
4 + -8n = 12

Solving
4 + -8n = 12

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + -8n = 12 + -4

Combine like terms: 4 + -4 = 0
0 + -8n = 12 + -4
-8n = 12 + -4

Combine like terms: 12 + -4 = 8
-8n = 8

Divide each side by '-8'.
n = -1

Simplifying
n = -1

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