Solve by elimination Day 2

Multiple Choice

Given 2x -3y = 12

and x +5y =4

Which option would allow you to solve by elimination?

• Multiply 1st by 5

• Multiply 2nd by 2

• Multiply 2nd by -2

• Multiply 1st by 1

Multiple Choice

Solve by elimination:
-x+2y=17

2x+2y=-10

• ARN
• (-9,4)
• (-9,-4)
• (9,-4)

Multiple Choice

Solve by elimination:
9x-4y=7

x-4y=-17

• (-1,5)
• (-7,5)
• (7,5)
• (3,5)

Multiple Choice

  8x+y=-16
    -3x+y=-5

• (-1,-8)
• (-8,-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 system of Equation (x,y)
3x + 2y = –13
3x + 4y = 1 

• (-9,7)
• (7,-9)
• (4,-7)
• (-7,-4)

Multiple Choice

 Solve using elimination.
 7x + 2y = 24
  8x + 2y = 30

• (6,-9)
• (-9,6)
• No solution
• Infinite number of solutions

Multiple Choice

Solve by elimination:
4x + 4y = 4
   3x + 4y =10

• (7,-6)
• (-6,7)
• (6,7)
• (7,6)

Multiple Choice

Solve for x and solve for y
3x  - 3y = 33
6x - 3y = 57

• (8,-3)
• (-3,8)
• (10,1)
• (10,-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

    $$7x+5y=-12$$   $$10x+5y=5$$   What does the second equation need to be multiplied by to get the y's to eliminate?

• 5

• 0

• -1

• 2