For the following system, use the second equation to make a substitution for x in the first equation.

3x + 2y=7

x-y+3 = 0

What is the resulting equation?

3x - y - 3 + 2y = 7

3ly - 3) + 2y = 7

3y-3 + 2y = 7

An unopened cereal box contains 1528 cubic foot of cereal. If the box is full, and the length and height of the box are 57 and 112 feet, respectively, what is the width of the box?

Angie and Kenny play online video games. Angie buys 1 software package and 3 months of game play. Kenny buys 1 software package and 4 months of game play. Each software package cost $50.

Forks come in packages of 10 and spoons come in packages of 8. jayrod wants to have the same number of forks and spoons and does not to spend more than he has to.

William travels only on Saturdays and Sundays and has flown 1,020 miles this month. Jason travels every weekday and has flown 1,200 miles this month.

Tina's Tops is a new store that prints personalized T-shirts. She charges a $12 one-time fee for the design. Solve the equation 72=12+4x and explain what the solution tells you about the number of shirts printed and the cost.

Identify the variable expression that is not a polynomial. A. Y+1 B. C. x^12 D. 23

6. Molly uses 192 beads to make a bracelet and a necklace. It takes 5 times as many beads to make a necklace than it does to make a bracelet. How many beads are used to make the necklace?

Jason buys sports equipment worth $80.00 and pays 5% sales tax. What is the total amount Jason pays including sales tax, for sports equipment?

I have an account balance of $200. I used my debit card to make a purchase of $350.25 how much money is in my account

Jason entered the elevator of the skyscraper on the ground floor and rode up to the 45th floor. Since Jason was texting, he didn't notice where he was, so he then rode down 28 floors and finally up 15 floors where he exited the elevator.