8m-7=-28+m

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Solution for 8m-7=-28+m equation: 



8m-7=-28+m

We move all terms to the left:

8m-7-(-28+m)=0

We add all the numbers together, and all the variables

8m-(m-28)-7=0

We get rid of parentheses

8m-m+28-7=0

We add all the numbers together, and all the variables

7m+21=0

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

7m=-21

m=-21/7

m=-3

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