12x-3x+4=5x-15

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Solution for 12x-3x+4=5x-15 equation: 



12x-3x+4=5x-15

We move all terms to the left:

12x-3x+4-(5x-15)=0

We add all the numbers together, and all the variables

9x-(5x-15)+4=0

We get rid of parentheses

9x-5x+15+4=0

We add all the numbers together, and all the variables

4x+19=0

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

4x=-19

x=-19/4

x=-4+3/4

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