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2x-100=87.5
We move all terms to the left:
2x-100-(87.5)=0
We add all the numbers together, and all the variables
2x-187.5=0
We move all terms containing x to the left, all other terms to the right
2x=187.5
x=187.5/2
x=93+1/1.3333333333333
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