15=x/3.9

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Solution for 15=x/3.9 equation: 



15=x/3.9

We move all terms to the left:

15-(x/3.9)=0

We add all the numbers together, and all the variables

-(+x/3.9)+15=0

We get rid of parentheses

-x/3.9+15=0

We multiply all the terms by the denominator


-x+15*3.9=0

We add all the numbers together, and all the variables

-1x+58.5=0

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

-x=-58.5

x=-58.5/-1

x=58+0.5/1

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