-21m+7-4m=-8m-27

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Solution for -21m+7-4m=-8m-27 equation: 



-21m+7-4m=-8m-27

We move all terms to the left:

-21m+7-4m-(-8m-27)=0

We add all the numbers together, and all the variables

-25m-(-8m-27)+7=0

We get rid of parentheses

-25m+8m+27+7=0

We add all the numbers together, and all the variables

-17m+34=0

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

-17m=-34

m=-34/-17

m=+2

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