39+x=15+3x

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Solution for 39+x=15+3x equation: 



39+x=15+3x

We move all terms to the left:

39+x-(15+3x)=0

We add all the numbers together, and all the variables

x-(3x+15)+39=0

We get rid of parentheses

x-3x-15+39=0

We add all the numbers together, and all the variables

-2x+24=0

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

-2x=-24

x=-24/-2

x=+12

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