6x+15=12x-9

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Solution for 6x+15=12x-9 equation: 



6x+15=12x-9

We move all terms to the left:

6x+15-(12x-9)=0

We get rid of parentheses

6x-12x+9+15=0

We add all the numbers together, and all the variables

-6x+24=0

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

-6x=-24

x=-24/-6

x=+4

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