systems of equation by elimination

Solve Systems by Elimination

By Truong Le

Multiple Choice

Solve the following system by using elimination:

3x - 5y = 8

2x + 5y = -3

• (1, 5)

• (1, -1)

• (-1, -1)

Multiple Choice

Solve the system by elimination.  

−8x − 10y = 20
−8x − 6y = −4 

• Infinite number of solutions  
• (6, 5) 
• (−6, −5) 
• (5, −6) 

Multiple Choice

Solve the following system by using elimination:

-2x - 5y = -15

x + 8y = 13

• (5, 1)

• (1, 5)

• (5, -1)

Multiple Choice

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

• (-7,1)
• (2,-5)
• (-2,5)
• (7,-1)

Multiple Choice

Solve the following system by using elimination:

-14x - 10y = -18

7x + 9y = -23

• (7, 8)

• (8, -7)

• (7, -8)

Multiple Choice

Solve the following system by using elimination:

-2x - 5y = -15

x + 8y = 13

• (5, 1)

• (5, -1)

• (-5, 1)

Multiple Choice

Solve the following system by using elimination:

-9x - 2y = -23

-10x - 5y = -20

• (-3, -2)

• (3, 2)

• (3, -2)

Fill in the Blank

$$-2x\ +\ 4y\ =10$$

$$x-y=-1$$  

(

,

)

Fill in the Blank

$$-2x+4y=12$$

$$-8x-6y=4$$  

(

-

,

)

Multiple Choice

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Multiple Choice

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

• (-1, -1) 
• (2,-1)
• (1,1)
• (1,-1)

Multiple Choice

Solve the system by elimination.
      4x + 12y = −1
−3x − 9y = 0 

• (10, 1) 
• (−10, −1) 
•  (10, −1) 
•  No solution