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8.25+12.38x+x=385.71
We move all terms to the left:
8.25+12.38x+x-(385.71)=0
We add all the numbers together, and all the variables
13.38x-377.46=0
We move all terms containing x to the left, all other terms to the right
13.38x=377.46
x=377.46/13.38
x=28+2.82/13.38
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