3.9=1.5*x

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Solution for 3.9=1.5*x equation: 



3.9=1.5x

We move all terms to the left:

3.9-(1.5x)=0

We add all the numbers together, and all the variables

-(+1.5x)+3.9=0

We get rid of parentheses

-1.5x+3.9=0

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

-1.5x=-3.9

x=-3.9/-1.5

x=2+0.9/1.5

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