99.9=9(m+3.9)

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Solution for 99.9=9(m+3.9) equation: 



99.9=9(m+3.9)

We move all terms to the left:

99.9-(9(m+3.9))=0



We calculate terms in parentheses: -(9(m+3.9)), so:

9(m+3.9)

We multiply parentheses

9m+35.1

Back to the equation:

-(9m+35.1)



We get rid of parentheses

-9m-35.1+99.9=0

We add all the numbers together, and all the variables

-9m+64.8=0

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

-9m=-64.8

m=-64.8/-9

m=7+1/5

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