-128=-2(8n+7)-2

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Solution for -128=-2(8n+7)-2 equation:


Simplifying
-128 = -2(8n + 7) + -2

Reorder the terms:
-128 = -2(7 + 8n) + -2
-128 = (7 * -2 + 8n * -2) + -2
-128 = (-14 + -16n) + -2

Reorder the terms:
-128 = -14 + -2 + -16n

Combine like terms: -14 + -2 = -16
-128 = -16 + -16n

Solving
-128 = -16 + -16n

Solving for variable 'n'.

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

Add '16n' to each side of the equation.
-128 + 16n = -16 + -16n + 16n

Combine like terms: -16n + 16n = 0
-128 + 16n = -16 + 0
-128 + 16n = -16

Add '128' to each side of the equation.
-128 + 128 + 16n = -16 + 128

Combine like terms: -128 + 128 = 0
0 + 16n = -16 + 128
16n = -16 + 128

Combine like terms: -16 + 128 = 112
16n = 112

Divide each side by '16'.
n = 7

Simplifying
n = 7

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