12x+9=9x-15

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



12x+9=9x-15
We move all terms to the left:
12x+9-(9x-15)=0
We get rid of parentheses
12x-9x+15+9=0
We add all the numbers together, and all the variables
3x+24=0
We move all terms containing x to the left, all other terms to the right
3x=-24
x=-24/3
x=-8

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