Setting Up Elimination

What would be the first step in finding the solution using elimination?

• you cannot solve this using elimination

• cross out the 2x and 3x

• Add the equations together. The y's will cancel out.

• change to slope intercept form and graph

what is the variable that willl be "eliminated"?

5x - 4y = 11

5x + 4y = -14

• x variable

• y variables

• both variables

Solve the system by elimination.

3x + y = 19

2x - y = 6

• (5, 14)

• (4, 5)

• (5, 4)

• (14, 5)

Solve the following system by elimination.

• (6,1)

• (1,-6)

• (-6,1)

• (-1,6)

• A

• B

• C

• D

Select the best choice.

• 1

• 2

• 3

• 4

• A

• B

• C

• D

• (1, -12)

• (-5, -30)

• (-5, 10)

• (1, 18)

-3x+12y=30

-9x+6y=30

• (-6,-4)

• (-6,8)

• (-8,-4)

• (6,4)

Solve by elimination:

-9x-4y=-20

5x+4y=4

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)