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12x+42.82=225.58
We move all terms to the left:
12x+42.82-(225.58)=0
We add all the numbers together, and all the variables
12x-182.76=0
We move all terms containing x to the left, all other terms to the right
12x=182.76
x=182.76/12
x=15+1/4.3478260869565
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