The sum of three numbers is 34. twice the first minus the second is 13 less than the third. the third is the second minus three times the first. find the numbers.

Find the value of x for which the lines are parallel.

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.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28