21=0.3(2m-3)

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Solution for 21=0.3(2m-3) equation: 



21=0.3(2m-3)

We move all terms to the left:

21-(0.3(2m-3))=0



We calculate terms in parentheses: -(0.3(2m-3)), so:

0.3(2m-3)

We multiply parentheses

0.6m-0.9

Back to the equation:

-(0.6m-0.9)



We get rid of parentheses

-0.6m+0.9+21=0

We add all the numbers together, and all the variables

-0.6m+21.9=0

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

-0.6m=-21.9

m=-21.9/-0.6

m=36+0.3/0.6

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