3(12-4m)=21-13m

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Solution for 3(12-4m)=21-13m equation:


Simplifying
3(12 + -4m) = 21 + -13m
(12 * 3 + -4m * 3) = 21 + -13m
(36 + -12m) = 21 + -13m

Solving
36 + -12m = 21 + -13m

Solving for variable 'm'.

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

Add '13m' to each side of the equation.
36 + -12m + 13m = 21 + -13m + 13m

Combine like terms: -12m + 13m = 1m
36 + 1m = 21 + -13m + 13m

Combine like terms: -13m + 13m = 0
36 + 1m = 21 + 0
36 + 1m = 21

Add '-36' to each side of the equation.
36 + -36 + 1m = 21 + -36

Combine like terms: 36 + -36 = 0
0 + 1m = 21 + -36
1m = 21 + -36

Combine like terms: 21 + -36 = -15
1m = -15

Divide each side by '1'.
m = -15

Simplifying
m = -15

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