2x-12+4=9x+15

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Solution for 2x-12+4=9x+15 equation: 



2x-12+4=9x+15

We move all terms to the left:

2x-12+4-(9x+15)=0

We add all the numbers together, and all the variables

2x-(9x+15)-8=0

We get rid of parentheses

2x-9x-15-8=0

We add all the numbers together, and all the variables

-7x-23=0

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

-7x=23

x=23/-7

x=-3+2/7

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