Substitution (Challenge)

Solve:
y = -3x -4
y = -8x - 9

• (5, 5)
• (-5, -5)
• (11, 13)
• (-1 , -1)

What is the solution to the system?
8x + 4y = 12
y = -2x + 9

• (0,3)
• (3,0)
• No solution

• Infinitely many solutions

Solve:
y = -x - 5
4x - 8y = 4

• (-3, -2)
• (5, -7)
• (3, 9)
• (-5, 4)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

What is the value of the y-coordinate of the solution to the system of equations 
x-2y=1
x+4y=7 

• 1
• -1
• 3
• 4

Solve the system of equations below:

4x+9y=28

-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

• (-4, 3)

• (3, -4)

• ( 0.5, 5.25)

• (5, 7.5)

What is the solution to this system?
-5 + y = x
4x + y = 20

• (3,8)
• (8,3)
• (0,2)
• (2,0)