Substitution Quiz Review

Solve the system by substitution.

y = 3x + 1

y = x + 3

• (-4, 1)

• (4, 1)

• (1, 4)

• (-1, 4)

y = 5x 
3x - y = 10

• (-5, -25)
• (2, 10)
• (-2, -1)
• (5, 25)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x - 5y = 5
3x + y = 31

• (10, -1)
• (9, 4)
• (10, 1)
• (55, 10)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

- 3x + y = -8
  x + y  = 4

• (3, 1)
• (1, 3)
• (3, -1)
• (-3, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = −2
4x − 3y =18

• (3,-2)
• (-2,3)
• (2,-3)
• (3,3)

Solve the system of equations using substitution:
y = 4
-x + 3y =8

• (4, 4)
• (4, -4)
• (-4, 4)
• (-20, 4)

x = 3y
2x + y = 28

• (12, 4)
• (28, 7)
• (7, 28)
• (4, 12)

Solve the following system.
y=4
 x=3y+5

• (27,4)
• (12,4)
• (17,4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x= -4

y= 5/4 x + 2

• (-3, -4)

• ( -4, -3)

• (3, 4)

• (4, 3)

-4x + y = 6

-5x - y = 21

• (3,6)

• (6, 3)

• (-6, -3)

• (-3, -6)