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8x-9=12+1
We move all terms to the left:
8x-9-(12+1)=0
We add all the numbers together, and all the variables
8x-9-13=0
We add all the numbers together, and all the variables
8x-22=0
We move all terms containing x to the left, all other terms to the right
8x=22
x=22/8
x=2+3/4
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