3(m-1)=12

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Solution for 3(m-1)=12 equation: 


Simplifying
3(m + -1) = 12

Reorder the terms:
3(-1 + m) = 12
(-1 * 3 + m * 3) = 12
(-3 + 3m) = 12

Solving
-3 + 3m = 12

Solving for variable 'm'.

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

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

Combine like terms: -3 + 3 = 0
0 + 3m = 12 + 3
3m = 12 + 3

Combine like terms: 12 + 3 = 15
3m = 15

Divide each side by '3'.
m = 5

Simplifying
m = 5

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