4(-7m-3)=128

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Solution for 4(-7m-3)=128 equation: 



4(-7m-3)=128

We move all terms to the left:

4(-7m-3)-(128)=0

We multiply parentheses

-28m-12-128=0

We add all the numbers together, and all the variables

-28m-140=0

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

-28m=140

m=140/-28

m=-5

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