-7n-4(-1-7n)=-12+13n

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Solution for -7n-4(-1-7n)=-12+13n equation: 


Simplifying
-7n + -4(-1 + -7n) = -12 + 13n
-7n + (-1 * -4 + -7n * -4) = -12 + 13n
-7n + (4 + 28n) = -12 + 13n

Reorder the terms:
4 + -7n + 28n = -12 + 13n

Combine like terms: -7n + 28n = 21n
4 + 21n = -12 + 13n

Solving
4 + 21n = -12 + 13n

Solving for variable 'n'.

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

Add '-13n' to each side of the equation.
4 + 21n + -13n = -12 + 13n + -13n

Combine like terms: 21n + -13n = 8n
4 + 8n = -12 + 13n + -13n

Combine like terms: 13n + -13n = 0
4 + 8n = -12 + 0
4 + 8n = -12

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 = -16
8n = -16

Divide each side by '8'.
n = -2

Simplifying
n = -2

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