7m-8=20

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Solution for 7m-8=20 equation: 



7m-8=20

We move all terms to the left:

7m-8-(20)=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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