7m-40=20+2m

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Solution for 7m-40=20+2m equation: 



7m-40=20+2m

We move all terms to the left:

7m-40-(20+2m)=0

We add all the numbers together, and all the variables

7m-(2m+20)-40=0

We get rid of parentheses

7m-2m-20-40=0

We add all the numbers together, and all the variables

5m-60=0

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

5m=60

m=60/5

m=12

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