-84=-3n-(8n+7)

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Solution for -84=-3n-(8n+7) equation:


Simplifying
-84 = -3n + -1(8n + 7)

Reorder the terms:
-84 = -3n + -1(7 + 8n)
-84 = -3n + (7 * -1 + 8n * -1)
-84 = -3n + (-7 + -8n)

Reorder the terms:
-84 = -7 + -3n + -8n

Combine like terms: -3n + -8n = -11n
-84 = -7 + -11n

Solving
-84 = -7 + -11n

Solving for variable 'n'.

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

Add '11n' to each side of the equation.
-84 + 11n = -7 + -11n + 11n

Combine like terms: -11n + 11n = 0
-84 + 11n = -7 + 0
-84 + 11n = -7

Add '84' to each side of the equation.
-84 + 84 + 11n = -7 + 84

Combine like terms: -84 + 84 = 0
0 + 11n = -7 + 84
11n = -7 + 84

Combine like terms: -7 + 84 = 77
11n = 77

Divide each side by '11'.
n = 7

Simplifying
n = 7

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