Systems of Equations

How many solutions exist for the system below?
3x - 3y = -6
y = x + 2

• No Solutions
• One Solutions
• Infinite Solutions 

How many solutions exist for the system below?
x + y = 0 
3x - y = 2 

• No Solutions
• One Solution
• Infinite Solutions 

Which system of equations has an x value of -1?

• x+y=0
  3x-y=2
• 3x-y=2
  y=-x-2
• x+y=0
  3x-3y=-6
• y=-x-2
  x+y=0

Which system of equations has an x value of -1?

• x+y=0
  3x-y=2
• 3x-y=2
  y=-x-2
• x+y=0
  3x-3y=-6
• y=-x-2
  x+y=0

If x = 5y -1 and 2x+5y= -32, what is the value of y?

• -2
• 2
• 1
• -1

Use elimination to solve the system below. What is the x value?
3x + 5y = 16
  8x -  5y  = 28 

• -6
• 5
• 4
• 4/5

Use elimination to solve the system.  Find the x value. 
x - 4y = 1
  x + 2y = 19

• -11
• 3
• 25
• 13

Use elimination to solve for x.
   4x + 7y = -14
8x + 5y =  8

• 3.5
• -1.5
• 8
• -4

Use elimination to solve for y. 
5x + 4y = -10
3x + 6y = -6 

• -2
• -5
• 0
• 2

The substitution method should be used to solve which system of equations?

• 5x-7y=16
  2x-7y=12
• 4x+3y=-5
  6x-3y=2
• x=3y+1
  2x+y=7
• 2x+6y=3
  3x+2y=-1