-84=-4(n+7)-4n

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Solution for -84=-4(n+7)-4n equation:


Simplifying
-84 = -4(n + 7) + -4n

Reorder the terms:
-84 = -4(7 + n) + -4n
-84 = (7 * -4 + n * -4) + -4n
-84 = (-28 + -4n) + -4n

Combine like terms: -4n + -4n = -8n
-84 = -28 + -8n

Solving
-84 = -28 + -8n

Solving for variable 'n'.

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

Add '8n' to each side of the equation.
-84 + 8n = -28 + -8n + 8n

Combine like terms: -8n + 8n = 0
-84 + 8n = -28 + 0
-84 + 8n = -28

Add '84' to each side of the equation.
-84 + 84 + 8n = -28 + 84

Combine like terms: -84 + 84 = 0
0 + 8n = -28 + 84
8n = -28 + 84

Combine like terms: -28 + 84 = 56
8n = 56

Divide each side by '8'.
n = 7

Simplifying
n = 7

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