Elimination system solving

What variable creates a zero pair?

x + 3y = 18

–x – 4y = –25

• x

• y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable creates a zero pair?

3x + y = –14

–2x – y = 9

• x

• y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• Yes

• No

What is the first step in solving this system using elimination?

6x - 3y = 6

-3x + 3y = -3

• Eliminate the x variables right away.

• Eliminate the y variables right away.

• Multiply the top equation by 2.

• None of these would work.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first step in solving this system using elimination?

-3x + 4y = 0

-9x + 6y = 18

• Eliminate Right Away

• Multiply the top equation by -3

• Multiply the top equation by 3

• Multiply the bottom equation by 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first step in solving this system using elimination?

-8x + y = 2

2x - 3y = 16

• Eliminate Right Away

• Multiply the top equation by 3

• Multiply the bottom equation by 8

• None of these would work.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• Infinite 

  Solutions

• No Solutions 

Tags

CCSS.8.EE.C.8B