Lauren H. answered • 09/24/18

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(24)
Experienced High School Chemistry Teacher

The total that Rajan spent on 5 books was $2 more than he would have spent on 4 copies of the book at the original price

5x - 2 = 4y

x = y - 5

Substitute:

5(y - 5) -2 = 4y

5y - 25 - 2 = 4y

y = 27

x = 22

Lauren H.

y = 27

x = 22

x = 22

So, x is the sale book and y is the non-sale book, because 22 is the lesser amount.

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09/24/18

Josh S.

09/24/18