Solving Systems of Linear Equations by Elimination

Work Must be shown:

Solve the system by elimination.   −8x − 10y = 20 −8x − 6y = −4 

• Infinite number of solutions  

• (6, 5) 

• (−6, −5) 

• (5, −6) 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution?

• (1, -2)

• (-2, 1)

• (-4, 1)

• (2, 1)

Tags

CCSS.HSA.REI.C.9

What is the x-coordinate of the ordered pair that solves:

1 x + 1 y = 3

1 x - 1 y = 4

• (14, 0)

• 3.5

• 7

• (2, 7)

Tags

CCSS.HSA.REI.C.9

Solve by elimination (with double-distribution): 10 g - 4 j = 0 6 g - 9 j = - 33

• (4, 10)

• (5, 4)

• (2, 5)

• (- 8, 30)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the y-coordinate of the ordered pair that solves:

3 x + 2 y = 2

3 x + 1 y = 7

• (2, -2)

• 4

• -5

• (-5, 4)

Tags

CCSS.HSA.REI.C.9

Solve this system of equation

5x - 2y = 9

2x + 7y = -12

• (1, -1)

• (-1, 1)

• (-1, 2)

• (1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:

• No solution

• (-1,8)

• (-2,-3)

• (-1,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
-x+2y=17

2x+2y=-10

• ARN

• (-9,4)

• (-9,-4)

• (9,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination

4x-6y= -6

-2x-12y= -12

• (0,1)

• (1,0)

• (1,1)

• (0, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination 
2x+9y= -7 
6x-3y= 9 

• (-1, -1) 

• (2,-1)

• (1,1)

• (1,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6