7m+1=-3m+91

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Solution for 7m+1=-3m+91 equation: 



7m+1=-3m+91

We move all terms to the left:

7m+1-(-3m+91)=0

We get rid of parentheses

7m+3m-91+1=0

We add all the numbers together, and all the variables

10m-90=0

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

10m=90

m=90/10

m=9

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