Elimination Quiz - 3/17/23

Solve the System using Elimination.
7x - y = -10
-7x + 5y = -6

• (-2, -4)
• (-2, -1)
• (-4, -1)
• (6, -8)

Solve the System using Elimination.
5x + y = 9
10x − 7y = −18

• (4, -11)
• (1, 4)
• (-1, 14)
• (-4, 29)

Solve using elimination. 
 4x + 8y = 20
-4x + 2y = -30

• (-7,1)
• (2,-5)
• (-2,5)
• (7,-1)

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)
• (6,0)
• (-6,0)
• (7,0)

Find the solution to the system below. 
3x + y = 19
2x - y = 6

• No solution
• (4, 5)
• (5, 4)
• (14, 5)

Solve by elimination:

7x+y=-9

-3x-y=5

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

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

• (-1, -1) 
• (2,-1)
• (1,1)
• (1,-1)

Solve by elimination

4x-6y= -6

-2x-12y= -12

• (0,1)

• (1,0)

• (1,1)

• (0, 2)

Solve the system by elimination.  

−7x + 6y = 29
10x + y = 16 

• (1,6) 
• (−1,−3) 
•  (−3, −1) 
• (−1, 3) 

What would be the first step in finding the solution using elimination?

2x + 2y = -2

3x - 2y = 12

• you cannot solve this using elimination

• cross out the 2x and 3x

• Add the like terms. The y terms will zero out.

• change to slope intercept form and graph