Elimination method

Elimination method

Multiple Choice

which variable should be eliminated?

4x + 8y = 20

-4x + 2y = -30

• x

• y

Multiple Choice

If you eliminate variable x, what will be the new equation?

• 6y = 10

• 10y = 10

• 10y = -10

Multiple Choice

10y = -10 what will be y = ?

• 1

• 20

• 0

• -1

Multiple Choice

What is the x - ?

4x + 8y = 20

• 7

• -7

• 28

• -28

Multiple Choice

What is the solution of the system?

4x + 8y = 20

-4x + 2y = -3=

• (-1,-7)

• (-1,7)

• (7,-1)

• (-7,1)