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(575+x)/2=287.50
We move all terms to the left:
(575+x)/2-(287.50)=0
We add all the numbers together, and all the variables
(x+575)/2-(287.5)=0
We add all the numbers together, and all the variables
(x+575)/2-287.5=0
We multiply all the terms by the denominator
(x+575)-(287.5)*2=0
We add all the numbers together, and all the variables
(x+575)-575=0
We get rid of parentheses
x+575-575=0
We add all the numbers together, and all the variables
x=0
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