-4+7(1-3m)=21m+3

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Solution for -4+7(1-3m)=21m+3 equation: 



-4+7(1-3m)=21m+3

We move all terms to the left:

-4+7(1-3m)-(21m+3)=0

We add all the numbers together, and all the variables

7(-3m+1)-(21m+3)-4=0

We multiply parentheses

-21m-(21m+3)+7-4=0

We get rid of parentheses

-21m-21m-3+7-4=0

We add all the numbers together, and all the variables

-42m=0

m=0/-42

m=0

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