Name:    Quiz 9-3: Solving Systems by Elimination by Adding and Subtracting

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Use elimination to solve the system of equations.
 a. c. b. d. no solution

2.

Use elimination to solve the system of equations.
 a. c. infinitely many solutions b. d. no solution

3.

If the system is solved by elimination, what is the value of x?
 a. 3 c. 5 b. 4 d. -6

4.

Half the perimeter of a garden is 18 feet. The garden is 8 feet longer than it is wide. If w = the width in feet and l = the length in feet, which system must be true?
 a. (l + w) = 18l = w + 8 c. l + w = 8l - w = 18 b. (l + w) = 18w = l + 8 d. l - w = 8l + w = 18

5.

What is the value of x if is solved by elimination?
 a. 5 c. 10 b. -13 d. 80

6.

Use elimination to solve the system of equations.
Use elimination to solve the system of equations.
7x + 4y = 57
7x + 9y = 102

7.

Use elimination to solve the system of equations.