-2(m-1)=-8

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Solution for -2(m-1)=-8 equation: 



-2(m-1)=-8

We move all terms to the left:

-2(m-1)-(-8)=0

We add all the numbers together, and all the variables

-2(m-1)+8=0

We multiply parentheses

-2m+2+8=0

We add all the numbers together, and all the variables

-2m+10=0

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

-2m=-10

m=-10/-2

m=+5

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