-7(1-8m)-5(7-4m)=-42

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Solution for -7(1-8m)-5(7-4m)=-42 equation: 



-7(1-8m)-5(7-4m)=-42

We move all terms to the left:

-7(1-8m)-5(7-4m)-(-42)=0

We add all the numbers together, and all the variables

-7(-8m+1)-5(-4m+7)-(-42)=0

We add all the numbers together, and all the variables

-7(-8m+1)-5(-4m+7)+42=0

We multiply parentheses

56m+20m-7-35+42=0

We add all the numbers together, and all the variables

76m=0

m=0/76

m=0

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