Systems of Equations Eliminations

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

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Solve by elimination:
7x + y = -9
-3x - y = 5

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

4x +  8y = 20
-4x + 2y = -30
Which variable will be eliminated?

• The  x

• The  y

• The  z

• The unknown

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

• TRUE

• FALSE

• A

• B

• C

• D

Solve using Elimination Method:

x - y = 11

2x + y = 19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Solve using Elimination Method:

x - y = 12

4x + y = 33

• (-9,-3)

• (3,-9)

• (9,-3)

• (-3,9)

Answer explanation

Solve using elimination method.

x-y=11

2x+y=19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

• A

• B

• C

• D

Solve the system with linear combinations method (Elimination method). x + 4y = -4 3x + 5y = 2 Type in answer with no spaces between terms. Ex: (-2,1) If no soultion type in NS If infinitely many solutions type in IMS

Answer explanation