-90=8-2(7n-7)

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Solution for -90=8-2(7n-7) equation:


Simplifying
-90 = 8 + -2(7n + -7)

Reorder the terms:
-90 = 8 + -2(-7 + 7n)
-90 = 8 + (-7 * -2 + 7n * -2)
-90 = 8 + (14 + -14n)

Combine like terms: 8 + 14 = 22
-90 = 22 + -14n

Solving
-90 = 22 + -14n

Solving for variable 'n'.

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

Add '14n' to each side of the equation.
-90 + 14n = 22 + -14n + 14n

Combine like terms: -14n + 14n = 0
-90 + 14n = 22 + 0
-90 + 14n = 22

Add '90' to each side of the equation.
-90 + 90 + 14n = 22 + 90

Combine like terms: -90 + 90 = 0
0 + 14n = 22 + 90
14n = 22 + 90

Combine like terms: 22 + 90 = 112
14n = 112

Divide each side by '14'.
n = 8

Simplifying
n = 8

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