Solving Systems Using Elimination

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

To eliminate a variable in the system, should you add the equations or subtract the equations?

• Add

• Subtract

• Neither

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 the system

2x + 3y = 6

x + 2y = 5

• ( 4 , -3 )

• ( -3 , 4 )

• ( 3 , 4 )

• ( 4 , 3 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

2m + 3n = 6

-m + 2n = 5

• n = 2

• ( 2, -1 )

• ( 2 , 1 )

• ( -1, 2 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

-2x + 2y = 9

y = 2x + 6

• ( -2/3, -3 )

• ( -3/2 , 3 )

• ( 1/2, 3 )

• ( -3/2, -3 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

-4x + 9y = 9

x = 3y - 6

• ( 5, 9 )

• ( -9 , -5 )

• x = 9

• ( 9 , 5 )

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system

-4x - 2y = -12

4x + 8y = -24

• 6

• ( 6 , -6 )

• ( -6 , 6 )

• ( 3 , -3 )

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