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38.75+3.50x=83.75
We move all terms to the left:
38.75+3.50x-(83.75)=0
We add all the numbers together, and all the variables
3.50x-45=0
We move all terms containing x to the left, all other terms to the right
3.50x=45
x=45/3.50
x=12+1/1.1666666666667
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