Solving Systems of Equations Using Elimination

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

The solution to a system of equations is any ordered pair that makes both equations true. 

• TRUE

• FALSE

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

You can solve systems using these methods:

• graphing, substitution, and elimination

• rearranging, thinking, and guessing

• only by graphing

• only by elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph

• Don't touch

• Intersect

• Exist

Tags

CCSS.8.EE.C.8B

• (1, 4)

• (4, 1)

• (1, -4)

• (-4, 1)

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

• (-5, -9)

• (9, 5)

• (5, 9)

• (-9, -5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by using elimination.

• (10, -1)

• (1, 10)

• (10, 15)

• (15, 10)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by using elimination.

• (1, 4)

• (4, 1)

• (2, 4)

• (4, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by using elimination.

• (-1, -8)

• (-8, -1)

• (-2, 6)

• (2, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6