Quizizz_Solving Systems by Elimination

1)  -4x-2y=-12
      4x+8y=-24

• (6,-6)
• (-6,6)
• (6,6)
• (-6,-6)

7x + 4y = -6
-7x - 6y = 30
answers in (x,y)

• (6, -12)
• (6, 12)
• (-12, 8)
• (12, -8)

-8x - 7y = 10
-8x + 5y = 34
answers in (x,y)

• No Solution
• (-3, -10)
• (3, 2)
• (-3, 2)

-3x+3y = 18
5x-3y = -26
answers in (x,y)

• (4,2)
• (-4,-2)
• (-4,2)
• (4,-2)

Determine how many solutions the system has.

• One Solution
• No Solutions
• Infinitely Many Solutions
• Mikey is my friend.

Determine how many solutions the system has.
(Hint:  Both lines are graphed over each other)

• One Solution
• No solution
• Infinitely Many Solutions
• I am Spartacus!

Which of the following is NOT a method to solve systems?

• Elimination
• Distribution
• Substitution
• Graphing

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

• The  x
• The  y
• The  z
• The unknown