4m-8+5m=2m+20

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Solution for 4m-8+5m=2m+20 equation: 



4m-8+5m=2m+20

We move all terms to the left:

4m-8+5m-(2m+20)=0

We add all the numbers together, and all the variables

9m-(2m+20)-8=0

We get rid of parentheses

9m-2m-20-8=0

We add all the numbers together, and all the variables

7m-28=0

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

7m=28

m=28/7

m=4

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