Kyle has 22 more cards than 3 times the number of cards that stan owns. together, they own less than 58 cards. how many cards are in stan's collection? a) stan owns 9 cards or less. b) stan owns 9 cards or more. c) stan owns less than 9 cards. d) stan owns more than 9 cards.

C) Stan owns less than 9 cards.

Let be the number of Kyle's cards and the number of Stan's cards.

We know from our problem that Kyle has 22 more cards than 3 times the number of cards that Stan owns, so:

equation (1)

We also knows that together, they own less than 58 cards, so:

equation (2)

Replace (1) in (2) and solve for :

Stan owns less than 9 cards.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

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