Solving Systems of Elimination Using Add and Subtract

Solve this system of equation

-8x + y = 1

-6x + y = 3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve this system of equation

5x - 2y = 9

2x + 7y = -12

• (1, -1)

• (-1, 1)

• (-1, 2)

• (1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (1, 4)

• (4, 1)

• (1, -4)

• (-4, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (-5, -9)

• (9, 5)

• (5, 9)

• (-9, -5)

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

Solve the system using Elimination.

-4x - 5y = 10

8x + 6y = 4

• (6, 5)

• Infinitely Many Solutions

• (-6, -5)

• (5, -6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• Multiply the first equation by 2.

• Multiply the second equation by 2.

• Add the equations together.

• Subtract one equation from the other.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which of the following systems of equations can be solved using elimination without multiplication?

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6