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8.7x-1.9x=166.96
We move all terms to the left:
8.7x-1.9x-(166.96)=0
We add all the numbers together, and all the variables
6.8x-166.96=0
We move all terms containing x to the left, all other terms to the right
6.8x=166.96
x=166.96/6.8
x=24+1/1.8085106383
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