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x/8-9=407
We move all terms to the left:
x/8-9-(407)=0
We add all the numbers together, and all the variables
x/8-416=0
We multiply all the terms by the denominator
x-416*8=0
We add all the numbers together, and all the variables
x-3328=0
We move all terms containing x to the left, all other terms to the right
x=3328
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