9m+3(7-6m)=21

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Solution for 9m+3(7-6m)=21 equation: 



9m+3(7-6m)=21

We move all terms to the left:

9m+3(7-6m)-(21)=0

We add all the numbers together, and all the variables

9m+3(-6m+7)-21=0

We multiply parentheses

9m-18m+21-21=0

We add all the numbers together, and all the variables

-9m=0

m=0/-9

m=0

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