7(m-1)=20

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Solution for 7(m-1)=20 equation: 



7(m-1)=20

We move all terms to the left:

7(m-1)-(20)=0

We multiply parentheses

7m-7-20=0

We add all the numbers together, and all the variables

7m-27=0

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

7m=27

m=27/7

m=3+6/7

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