3.9m-4=4.7m+8

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Solution for 3.9m-4=4.7m+8 equation: 



3.9m-4=4.7m+8

We move all terms to the left:

3.9m-4-(4.7m+8)=0

We get rid of parentheses

3.9m-4.7m-8-4=0

We add all the numbers together, and all the variables

-0.8m-12=0

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

-0.8m=12

m=12/-0.8

m=-15

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