Solving Systems via Substitution

y = 5x + 1
y = 3x + 13

• (6, 31)

• (31, 6)

• (4, 21)

• (2, 11)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)

• (1,3)

• (-3,1)

• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve each system of equations.
y = 3x - 11  
2x + 3y = 0

• (-2,3)

• (-3,2)

• (3,-2)

• (2,-3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Homer sells tickets for admission to your school play and collects a total of $104. Admission prices are $6 for adults and $4 for children. He sold 21 tickets total. Solve the system:
x + y = 21
6x + 4y = 104

• (10, 11)

• (12, 9)

• (11, 10)

• (9, 12)

Tags

CCSS.8.EE.C.8C

What is the solution to this system?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Tags

CCSS.8.EE.C.8B

Solve the system by substitution. 
-2x - 2y = 16
y = -8

• (0, -8)

• (-8, 0)

• (-16, -8)

• (-16, -8)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using substitution.

3x + 2y = 16

7x + y = 19

• (-2,5)

• (-2,-5)

• (2,-5)

• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 3x
2x + y = 20

• (4, 8)

• (3, 9)

• (2, 6)

• (4, 12)

Tags

CCSS.HSA.REI.C.7

y = 2x + 1
3x + y = 16

• x = 3

• (2, 7)

• (3, 5)

• (3, 7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = -2x + 5
y = 2x - 11

• No Solution

• (0, 0)

• (3, -1)

• (4, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6