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20.66=2x+4.98
We move all terms to the left:
20.66-(2x+4.98)=0
We get rid of parentheses
-2x-4.98+20.66=0
We add all the numbers together, and all the variables
-2x+15.68=0
We move all terms containing x to the left, all other terms to the right
-2x=-15.68
x=-15.68/-2
x=7+1/1.1904761904762
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