3m+3-8m=21

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Solution for 3m+3-8m=21 equation: 



3m+3-8m=21

We move all terms to the left:

3m+3-8m-(21)=0

We add all the numbers together, and all the variables

-5m-18=0

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

-5m=18

m=18/-5

m=-3+3/5

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