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-2.3-4.2x=x66.3
We move all terms to the left:
-2.3-4.2x-(x66.3)=0
We add all the numbers together, and all the variables
-4.2x-(+x66.3)-2.3=0
We get rid of parentheses
-4.2x-x66.3-2.3=0
We move all terms containing x to the left, all other terms to the right
-4.2x-x66.3=2.3
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