12m-16=8m+20

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Solution for 12m-16=8m+20 equation: 



12m-16=8m+20

We move all terms to the left:

12m-16-(8m+20)=0

We get rid of parentheses

12m-8m-20-16=0

We add all the numbers together, and all the variables

4m-36=0

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

4m=36

m=36/4

m=9

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