-7(2-m)=28

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Solution for -7(2-m)=28 equation: 



-7(2-m)=28

We move all terms to the left:

-7(2-m)-(28)=0

We add all the numbers together, and all the variables

-7(-1m+2)-28=0

We multiply parentheses

7m-14-28=0

We add all the numbers together, and all the variables

7m-42=0

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

7m=42

m=42/7

m=6

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