12-m*2=54

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Solution for 12-m*2=54 equation: 



12-m*2=54

We move all terms to the left:

12-m*2-(54)=0

We add all the numbers together, and all the variables

-m*2-42=0

Wy multiply elements

-2m-42=0

We move all terms containing m to the left, all other terms to the right

-2m=42

m=42/-2

m=-21

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