100.8=9(m+3.9)

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Solution for 100.8=9(m+3.9) equation: 



100.8=9(m+3.9)

We move all terms to the left:

100.8-(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+100.8=0

We add all the numbers together, and all the variables

-9m+65.7=0

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

-9m=-65.7

m=-65.7/-9

m=7+2.7/9

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