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2.3-5x=18.8
We move all terms to the left:
2.3-5x-(18.8)=0
We add all the numbers together, and all the variables
-5x-16.5=0
We move all terms containing x to the left, all other terms to the right
-5x=16.5
x=16.5/-5
x=-3+1/3.33333333333
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