-7m+3-8m=18

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Solution for -7m+3-8m=18 equation: 



-7m+3-8m=18

We move all terms to the left:

-7m+3-8m-(18)=0

We add all the numbers together, and all the variables

-15m-15=0

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

-15m=15

m=15/-15

m=-1

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