-8(n-9)=-7n-7

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Solution for -8(n-9)=-7n-7 equation:


Simplifying
-8(n + -9) = -7n + -7

Reorder the terms:
-8(-9 + n) = -7n + -7
(-9 * -8 + n * -8) = -7n + -7
(72 + -8n) = -7n + -7

Reorder the terms:
72 + -8n = -7 + -7n

Solving
72 + -8n = -7 + -7n

Solving for variable 'n'.

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

Add '7n' to each side of the equation.
72 + -8n + 7n = -7 + -7n + 7n

Combine like terms: -8n + 7n = -1n
72 + -1n = -7 + -7n + 7n

Combine like terms: -7n + 7n = 0
72 + -1n = -7 + 0
72 + -1n = -7

Add '-72' to each side of the equation.
72 + -72 + -1n = -7 + -72

Combine like terms: 72 + -72 = 0
0 + -1n = -7 + -72
-1n = -7 + -72

Combine like terms: -7 + -72 = -79
-1n = -79

Divide each side by '-1'.
n = 79

Simplifying
n = 79

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