Systems by Elimination

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

Solve by elimination 
-2x + 6y = 16
-4x  - 3y = 2

• (2,2)
• (-2, -2) 
• (-2,2)
• (2,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations:
–x – 7y = 9
–x + 9y = –23 

• (3, -4)
• (3,4)
• (-2,5)
• (5,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

- 3x + y = -8

x + y = 4

• (3, 1)

• (1, 3)

• (3, -1)

• (-3, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6