15x-3=12x+9

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Solution for 15x-3=12x+9 equation: 



15x-3=12x+9

We move all terms to the left:

15x-3-(12x+9)=0

We get rid of parentheses

15x-12x-9-3=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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