8-7n-2n=1-7n-n

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Solution for 8-7n-2n=1-7n-n equation:


Simplifying
8 + -7n + -2n = 1 + -7n + -1n

Combine like terms: -7n + -2n = -9n
8 + -9n = 1 + -7n + -1n

Combine like terms: -7n + -1n = -8n
8 + -9n = 1 + -8n

Solving
8 + -9n = 1 + -8n

Solving for variable 'n'.

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

Add '8n' to each side of the equation.
8 + -9n + 8n = 1 + -8n + 8n

Combine like terms: -9n + 8n = -1n
8 + -1n = 1 + -8n + 8n

Combine like terms: -8n + 8n = 0
8 + -1n = 1 + 0
8 + -1n = 1

Add '-8' to each side of the equation.
8 + -8 + -1n = 1 + -8

Combine like terms: 8 + -8 = 0
0 + -1n = 1 + -8
-1n = 1 + -8

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

Divide each side by '-1'.
n = 7

Simplifying
n = 7

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