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3.5x-15.3=1.3
We move all terms to the left:
3.5x-15.3-(1.3)=0
We add all the numbers together, and all the variables
3.5x-16.6=0
We move all terms containing x to the left, all other terms to the right
3.5x=16.6
x=16.6/3.5
x=4+2.6/3.5
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