6.4 Elimination using Multiplication

Solve the system using Multiplication. 
2x + 3y = 12
5x - y = 13

• x = -3, y = -2
• x = 1.5, y = 2
• x = 6, y = 0
• x = 3, y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by multiplication.
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by multiplication.
2x + 10y = -20
-x + 4y = 28

• (-20,2)
• (1,4)
• (2,-20)
• (-2,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

14x - 10y = -6
 7x - 2y = -18

• (-4, 5)
• (-4, -5)
• (4, 11)
• (-5, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

3x - 2y = 2

5x - 5y = 10

• No Solution

• x = -2

• ( 2 , 4 )

• ( -2 , -4 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

3x - y = 4

2x - 3y = -9

• No Solution

• ( 3 , 5 )

• ( -3 , -5 )

• ( 5 , 3 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using Elimination.

• (1,-4)

• (-4,1)

• (-1,4)

• (4,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What number should we multiply by and on which equation?
3x + 2y = 16
7x + y = 19

• bottom, -2
• top, -2
• bottom, 3
• top, -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What number should we multiply by and on which equation?
2x + 10y = -20
-x + 4y = 28

• bottom, 2
• bottom, -2
• top, -1
• top, -2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What number should we multiply by and on which equation?
14x - 9y = 1
-7x + 3y = 16

• bottom equation by 3
• bottom equation by -2
• top equation by -2
• top equation by 3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6