15-3x=4x+12

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Solution for 15-3x=4x+12 equation: 



15-3x=4x+12

We move all terms to the left:

15-3x-(4x+12)=0

We get rid of parentheses

-3x-4x-12+15=0

We add all the numbers together, and all the variables

-7x+3=0

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

-7x=-3

x=-3/-7

x=3/7

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