4m+(-8)=20

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Solution for 4m+(-8)=20 equation: 



4m+(-8)=20

We move all terms to the left:

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

determiningTheFunctionDomain
4m-20+(-8)=0

We add all the numbers together, and all the variables

4m-28=0

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

4m=28

m=28/4

m=7

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