7m-20=4m+7

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Solution for 7m-20=4m+7 equation: 



7m-20=4m+7

We move all terms to the left:

7m-20-(4m+7)=0

We get rid of parentheses

7m-4m-7-20=0

We add all the numbers together, and all the variables

3m-27=0

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

3m=27

m=27/3

m=9

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