84=5m+3(4m-6)

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Solution for 84=5m+3(4m-6) equation:


Simplifying
84 = 5m + 3(4m + -6)

Reorder the terms:
84 = 5m + 3(-6 + 4m)
84 = 5m + (-6 * 3 + 4m * 3)
84 = 5m + (-18 + 12m)

Reorder the terms:
84 = -18 + 5m + 12m

Combine like terms: 5m + 12m = 17m
84 = -18 + 17m

Solving
84 = -18 + 17m

Solving for variable 'm'.

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

Add '-17m' to each side of the equation.
84 + -17m = -18 + 17m + -17m

Combine like terms: 17m + -17m = 0
84 + -17m = -18 + 0
84 + -17m = -18

Add '-84' to each side of the equation.
84 + -84 + -17m = -18 + -84

Combine like terms: 84 + -84 = 0
0 + -17m = -18 + -84
-17m = -18 + -84

Combine like terms: -18 + -84 = -102
-17m = -102

Divide each side by '-17'.
m = 6

Simplifying
m = 6

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