Solving Systems: Substitution

3x + y = 1
y = 4x + 1

• (0, -1)
• No Solution
• (0, 8)
• (0, 1)

y = -2x + 18
y = 8

• (5, 8)
• (-5, 8)
• (2, 8)
• (-2, 8)

x = -3y - 8
x - 2y = -3

• (5, -1)
• (-5, 1)
• (-5,-1)
• (1,-5)

Solve the system by Substitution. 
2x + 3y = 18
  x = 3y - 9

• (3, 4)
• (-3, 4)
• (4,3)
• (-9, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system of equations?

• (4, -1)
• (-1, 4)
• (-4, 1)
• (-4, -1)

Solve:
y = -1x - 5
4x - 8y = 4

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6