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5x-2.5=15.7
We move all terms to the left:
5x-2.5-(15.7)=0
We add all the numbers together, and all the variables
5x-18.2=0
We move all terms containing x to the left, all other terms to the right
5x=18.2
x=18.2/5
x=3+2.6666666666667/4.1666666666667
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