-4(m-20)=12

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Solution for -4(m-20)=12 equation: 



-4(m-20)=12

We move all terms to the left:

-4(m-20)-(12)=0

We multiply parentheses

-4m+80-12=0

We add all the numbers together, and all the variables

-4m+68=0

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

-4m=-68

m=-68/-4

m=+17

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