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3.45x-5.15=15.3=8
We move all terms to the left:
3.45x-5.15-(15.3)=0
We add all the numbers together, and all the variables
3.45x-20.45=0
We move all terms containing x to the left, all other terms to the right
3.45x=20.45
x=20.45/3.45
x=5+1/1.078125
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