# algebra

need help
Marked at half price and less the dealer discount of \$4.50, the CD cost \$4.50. How much was the original price of the CD?

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1. key words:

Marked at half price means the CD is 1/2 the original value

Less means minus,

So, with the half price and discount:

let x = price of original CD

(1/2)*x-4.50 = 4.50

solve for x to find the original price of the CD

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2. I do not understand

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3. take 4.50 off half x and end up with 4.50
(1/2) x = 9
x = 18

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