3m+7=4.2+5

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Solution for 3m+7=4.2+5 equation: 



3m+7=4.2+5

We move all terms to the left:

3m+7-(4.2+5)=0

We add all the numbers together, and all the variables

3m+7-(9.2)=0

We add all the numbers together, and all the variables

3m-2.2=0

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

3m=2.2

m=2.2/3

m=2.2/3

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