# System Of Linear Equations

7 Questions | Total Attempts: 1307  Settings  Solving a system of linear equations with two variables by methods of substitution and elimination and graphically.

• 1.
When solving system of equations , which expression could be substituted for r in the second equation? r = 4 - s3r + 2s = 15
• A.

4 - s

• B.

4 - r

• C.

S - 4.

• D.

4/s

• 2.
Use elimination to solve the system of equations.x + 6y = 10x + 5y = 9
• A.

(1,4)

• B.

(4,1)

• C.

(-1, -4)

• D.

(-4, -1)

• 3.
Use substitution to solve the system of equationsn = 3m - 112m + 3n = 0
• A.

(-2, 3)

• B.

(-3, 2)

• C.

(3, -2)

• D.

(2, -3)

• 4.
Solve the system of equations.Use the video clip as  a guide to apply the method of elimination by addition.6x - 7y = 213x  + 7y = 6
• A.

(-3, 3/7)

• B.

(3, -3/7)

• C.

(7/3, -3)

• D.

(-3, -7/3)

• 5.
• A.

(3, 1)

• B.

(1, 3)

• C.

(-2,1)

• D.

(-3, -1)

• 6.
To eliminate the variable y in the system of equations, multiply the second equation by which number?6x + 4y = 222x - y = 1
• A.

3

• B.

9

• C.

22

• D.

4

• 7.
The length of a rectangle is three times the width. The sum of the length and the width is 24 inches. What is the length of the rectangle?
• A.

3 inches

• B.

6 inches

• C.

9 inches

• D.

18 inches

Related Topics