-84=3(3m-4)

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


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

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

Solving
-84 = -12 + 9m

Solving for variable 'm'.

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

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

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

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

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

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

Divide each side by '-9'.
m = -8

Simplifying
m = -8

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