Solving Equations by Elimination Which Variable

Which is the best method for solving this system of equations?

• Substitution

• Elimination

• Equal Values

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the best method for solving this system of equations?

x-y=11

2x+y=19

• Elimination

• Substitution

• Equals Value

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the best method for solving this system of equations?

• Substitution

• Elimination

• Equal Values

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

what is the variable that willl be "eliminated"?

5x - 4y = 11

5x + 4y = -14

• x variable

• y variables

• both variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using Elimination Method:

4x+ 9y = 28

-4x -y = -28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

• (6,7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using Elimination Method:

x - y = 11

2x + y = 19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

To eliminate the y variable, what should be done?

• Multiply the top equation by 1.

• Multiply the bottom equation by 3.

• Multiply the bottom equation by -3.

• Multiply the top equation by 4.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable would be easiest to eliminate?

• x

• y

• Neither

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When you solve the system of equations, what is the solution for x?

• 4

• -1

• -4

• 1

Tags

CCSS.HSA.REI.C.9