-3(-3n-4)=84

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Solution for -3(-3n-4)=84 equation: 


Simplifying
-3(-3n + -4) = 84

Reorder the terms:
-3(-4 + -3n) = 84
(-4 * -3 + -3n * -3) = 84
(12 + 9n) = 84

Solving
12 + 9n = 84

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + 9n = 84 + -12

Combine like terms: 12 + -12 = 0
0 + 9n = 84 + -12
9n = 84 + -12

Combine like terms: 84 + -12 = 72
9n = 72

Divide each side by '9'.
n = 8

Simplifying
n = 8

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