12+8m=7m+4m

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Solution for 12+8m=7m+4m equation: 



12+8m=7m+4m

We move all terms to the left:

12+8m-(7m+4m)=0

We add all the numbers together, and all the variables

8m-(+11m)+12=0

We get rid of parentheses

8m-11m+12=0

We add all the numbers together, and all the variables

-3m+12=0

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

-3m=-12

m=-12/-3

m=+4

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