Solving Equations Using Elimination

Solve by elimination:
7x+y=-9

-3x-y=5

• No solution

• (1,8)

• (-2,-3)

• (-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

• (-3, 2)

• (3, 2)

• (-2, 3)

• (2, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (4, -2)

• (-2, 4)

• (2, 4)

• (2, -4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (-7, -1)

• (1, 7)

• (-1, -7)

• (7, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

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

• 4

• -1

• -4

• 1

Tags

CCSS.HSA.REI.C.9

Given the system of equations, what is the value of x + y?

• 2

• 8

• 6

• 0

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