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12(x+3.20)=54
We move all terms to the left:
12(x+3.20)-(54)=0
We add all the numbers together, and all the variables
12(x+3.2)-54=0
We multiply parentheses
12x+38.4-54=0
We add all the numbers together, and all the variables
12x-15.6=0
We move all terms containing x to the left, all other terms to the right
12x=15.6
x=15.6/12
x=1+1/3.33333333333
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