Q. Solve for x and y
3x + 2y = 16
7x + y = 19

Q. Solve for x and y
y = 2x + 1
y = 4x - 1

Q. The equations of two lines are:
 2x-y=4 and y=-2x+8.
What is the value of x in the solution for this system?

Q. Christian had brochures printed for a new business venture. Christian originally ordered 4 boxes of black-and-white brochures and 3 boxes of color brochures, which cost a total of $134. After those ran out, Christian spent $120 on 3 boxes of black-and-white brochures and 3 boxes of color brochures. Which system represents this situation?

Q. Two brothers went shopping at a back-to-school sale where all shirts and shorts were the same price. The younger brother spent $175 on 7 new shirts and 7 pairs of shorts. The older brother purchased 6 new shirts and 7 pairs of shorts and paid a total of $165. How much did one shirt cost?

Q. If a system of equations has no solution, what does the graph look like? 

Q. What is the value of the y-coordinate of the solution to the system of equations 
x-2y=1
x+4y=7 

Q. David is running a concession stand at a soccer game. He sells nachos and sodas. Nachos cost $1.50 each and sodas cost $0.50 each. At the end of the game, David made a total of $78.50 and sold a total of 87 nachos and sodas combined. Which system of equations represents this situation?