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(x)=4.50x-7
We move all terms to the left:
(x)-(4.50x-7)=0
We get rid of parentheses
x-4.50x+7=0
We add all the numbers together, and all the variables
-3.5x+7=0
We move all terms containing x to the left, all other terms to the right
-3.5x=-7
x=-7/-3.5
x=+2
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