7.8(m-1.9)=21.2

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Solution for 7.8(m-1.9)=21.2 equation: 



7.8(m-1.9)=21.2

We move all terms to the left:

7.8(m-1.9)-(21.2)=0

We add all the numbers together, and all the variables

7.8(m-1.9)-21.2=0

We multiply parentheses

7.8m-14.82-21.2=0

We add all the numbers together, and all the variables

7.8m-36.02=0

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

7.8m=36.02

m=36.02/7.8

m=4+2.6483516483516/4.2857142857143

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