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16.67x+12.5x=100
We move all terms to the left:
16.67x+12.5x-(100)=0
We add all the numbers together, and all the variables
29.17x-100=0
We move all terms containing x to the left, all other terms to the right
29.17x=100
x=100/29.17
x=3+8.3825503355705/19.577181208054
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