Write two linear expressions that have a sum of 6x + 9.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

Nine more than four times a number is the same as one less than twice the number. find the number?