Systems Benchmark

Which value of x is a solution to 3x + 6 = 21?

• 3
• 4
• 5
• 6

Tags

CCSS.6.EE.B.5

Use elimination to identify which point is a solution to the system below.

4x+8y=20

-4x+2y=-30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Use elimination to solve the system.

-6x+5y=1

6x+4y=-10

• (1,-1)

• (0,-1)

• (1,1)

• (-1,-1)

• (2, -2)
• (2, 2)
• (-2, 2)
• (-2, -2)

Tags

CCSS.8.EE.C.8A

Solve by elimination:

7x-9y=29

7x+2y=-15

• (-4,-4)

• (-1.-4)

• (-1,4)

• (-1,4)

Graph the system on your paper and state the solution.

• Many Solutions

• (-3, -1)

• (-1, -1)

• (1, -1)

• No Solution

Substitute the variable and solve the equation.

y = -6

y = 3x + 9

• x = -7

• x = 1

• x = 7

• x = -5

Substitute the variable and solve the equation

x = -2

3x - y = -8

• y=-2

• y=-8

• y=2

• y=3

Find the value of x given the equation below:

2x + 6 = 14

• x = 4

• x = 10

• x = 3

Solve the system by elimination.

−7x + 6y = 29

10x + y = 16

• (1,6)

• (1,−3)

• (−3, −1)

• (1, 3)