12m+7=13+3m+8m

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Solution for 12m+7=13+3m+8m equation: 



12m+7=13+3m+8m

We move all terms to the left:

12m+7-(13+3m+8m)=0

We add all the numbers together, and all the variables

12m-(11m+13)+7=0

We get rid of parentheses

12m-11m-13+7=0

We add all the numbers together, and all the variables

m-6=0

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

m=6

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