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28.50+18x=16.50+20x
We move all terms to the left:
28.50+18x-(16.50+20x)=0
We add all the numbers together, and all the variables
18x-(20x+16.5)+28.50=0
We add all the numbers together, and all the variables
18x-(20x+16.5)+28.5=0
We get rid of parentheses
18x-20x-16.5+28.5=0
We add all the numbers together, and all the variables
-2x+12=0
We move all terms containing x to the left, all other terms to the right
-2x=-12
x=-12/-2
x=+6
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