Substitution Method

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. 

y = −6x + 3
−18x − 3y = 4 

• (−3, 8)  
• (−8, −3)  
• (2, −3)  
• No Solution

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. 
2x − y = −5
y = 2x + 5 

• Infinite number of solutions
  
• (−4, −8)
  
• (−4, 5) 
• (−4, 3) 

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