12x-15=9x-9

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



12x-15=9x-9

We move all terms to the left:

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

We get rid of parentheses

12x-9x+9-15=0

We add all the numbers together, and all the variables

3x-6=0

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

3x=6

x=6/3

x=2

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