m+7m=40-2m

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Solution for m+7m=40-2m equation: 



m+7m=40-2m

We move all terms to the left:

m+7m-(40-2m)=0

We add all the numbers together, and all the variables

m+7m-(-2m+40)=0

We add all the numbers together, and all the variables

8m-(-2m+40)=0

We get rid of parentheses

8m+2m-40=0

We add all the numbers together, and all the variables

10m-40=0

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

10m=40

m=40/10

m=4

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