31m-45=2m+21

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Solution for 31m-45=2m+21 equation: 



31m-45=2m+21

We move all terms to the left:

31m-45-(2m+21)=0

We get rid of parentheses

31m-2m-21-45=0

We add all the numbers together, and all the variables

29m-66=0

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

29m=66

m=66/29

m=2+8/29

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