-2(1+m)+8(-5-7m)=-42

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Solution for -2(1+m)+8(-5-7m)=-42 equation: 



-2(1+m)+8(-5-7m)=-42

We move all terms to the left:

-2(1+m)+8(-5-7m)-(-42)=0

We add all the numbers together, and all the variables

-2(m+1)+8(-7m-5)-(-42)=0

We add all the numbers together, and all the variables

-2(m+1)+8(-7m-5)+42=0

We multiply parentheses

-2m-56m-2-40+42=0

We add all the numbers together, and all the variables

-58m=0

m=0/-58

m=0

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