12x-15-13x=3x

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Solution for 12x-15-13x=3x equation: 



12x-15-13x=3x

We move all terms to the left:

12x-15-13x-(3x)=0

We add all the numbers together, and all the variables

-4x-15=0

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

-4x=15

x=15/-4

x=-3+3/4

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