3(4m+5)-12=2m+7

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Solution for 3(4m+5)-12=2m+7 equation:


Simplifying
3(4m + 5) + -12 = 2m + 7

Reorder the terms:
3(5 + 4m) + -12 = 2m + 7
(5 * 3 + 4m * 3) + -12 = 2m + 7
(15 + 12m) + -12 = 2m + 7

Reorder the terms:
15 + -12 + 12m = 2m + 7

Combine like terms: 15 + -12 = 3
3 + 12m = 2m + 7

Reorder the terms:
3 + 12m = 7 + 2m

Solving
3 + 12m = 7 + 2m

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
3 + 12m + -2m = 7 + 2m + -2m

Combine like terms: 12m + -2m = 10m
3 + 10m = 7 + 2m + -2m

Combine like terms: 2m + -2m = 0
3 + 10m = 7 + 0
3 + 10m = 7

Add '-3' to each side of the equation.
3 + -3 + 10m = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 10m = 7 + -3
10m = 7 + -3

Combine like terms: 7 + -3 = 4
10m = 4

Divide each side by '10'.
m = 0.4

Simplifying
m = 0.4

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