Method System of Equations

Solve for x and y by using the substitution method.

y = -2x

4x - y = 0

• (1,2)

• (0,0)

• No Solutions

• Infinite Solutions

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system using the substitution method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x and y by using the substitution method. y = 2x + 1 y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

• (-2, -1)

• (1, -2)

• (-2, 1)

• (-1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.
3x − 2y = 7
y = 2x − 7

• No solution  

• (7, 7)  

• (−7, −7)  

• (−7, −3)  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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 the system by substitution. 
-5x - 4y = -9
y = 6

• (3, 6)

• (6, -3)

• (-3, 6)

• (6.8, 3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.
y = 2x − 11
2x − 8y = 4

• (6, 1)
  

• (6, −1)
  

• (6, −4)
  

• Infinite number of solutions  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution. 
−x + 5y = 12
y = −2x − 2 

• (−2, −7) 

• (−2, 2) 

• (−2, −2) 

• (2, −2) 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution. 
y = 5
-6x+3y = 3

• (4,1)

• (2, 1)

• (1, 5)

• (2, 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6