Substitution by System of Equations

Solve each system by substitution.

• A

• B

• C

• D

Solve each system by substitution.

• A

• B

• C

• D

Solve each system by substitution.

• A

• B

• C

• D

What is the solution to this equation?

• one solution

• no solution

• infinite solutions

• none of these

Which choice shows substitution correctly?

• 3x + (2x + 3) = 20

• 3x + 2y(2x + 3) = 20

• 3x + 2 (2x + 3) = 20

• y + 2x + 3 = 20

Which graph represents a system of equations with infinite solutions?

• 
• 
• 
• None of the above

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

•  (6, 1)

• (6, −4)

• (6, −1)

• Infinite number of solutions  

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

• No solution 

•  (7, 7)  

•  (−7, −7)  

•  (−7, −3)  

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

• (3,1)

• (-3,1)

• (1,3)

• (3,-1)

What is the solution to this system? 

• (3,1)

• No solution

• Infinite solutions

• (1,3)