4m-9m=3(7-2m)

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Solution for 4m-9m=3(7-2m) equation: 



4m-9m=3(7-2m)

We move all terms to the left:

4m-9m-(3(7-2m))=0

We add all the numbers together, and all the variables

4m-9m-(3(-2m+7))=0

We add all the numbers together, and all the variables

-5m-(3(-2m+7))=0



We calculate terms in parentheses: -(3(-2m+7)), so:

3(-2m+7)

We multiply parentheses

-6m+21

Back to the equation:

-(-6m+21)



We get rid of parentheses

-5m+6m-21=0

We add all the numbers together, and all the variables

m-21=0

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

m=21

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