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3x-9=2(3)-8
We move all terms to the left:
3x-9-(2(3)-8)=0
We add all the numbers together, and all the variables
3x-9-15=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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