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66.20=54.50+3x
We move all terms to the left:
66.20-(54.50+3x)=0
We add all the numbers together, and all the variables
-(3x+54.5)+66.20=0
We add all the numbers together, and all the variables
-(3x+54.5)+66.2=0
We get rid of parentheses
-3x-54.5+66.2=0
We add all the numbers together, and all the variables
-3x+11.7=0
We move all terms containing x to the left, all other terms to the right
-3x=-11.7
x=-11.7/-3
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