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12.25x-3.99=77.49
We move all terms to the left:
12.25x-3.99-(77.49)=0
We add all the numbers together, and all the variables
12.25x-81.48=0
We move all terms containing x to the left, all other terms to the right
12.25x=81.48
x=81.48/12.25
x=6+4.030303030303/6.1868686868687
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