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-2.5x-10.8=3
We move all terms to the left:
-2.5x-10.8-(3)=0
We add all the numbers together, and all the variables
-2.5x-13.8=0
We move all terms containing x to the left, all other terms to the right
-2.5x=13.8
x=13.8/-2.5
x=-5+1/1.9230769230769
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