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864=0.28x+500
We move all terms to the left:
864-(0.28x+500)=0
We get rid of parentheses
-0.28x-500+864=0
We add all the numbers together, and all the variables
-0.28x+364=0
We move all terms containing x to the left, all other terms to the right
-0.28x=-364
x=-364/-0.28
x=1299+0.28/0.28
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