Systems of Equation Review

What is the solution to the system?

• (6, 8)

• (8, 6)

• (-6, 8)

• No solution

What is the solution?

• No solution

• (0, 2)

• (0, -4)

• (3, -3)

^{What is the solution?} 

• 1

• -2

• (1, 2)

• (1, -1)

Solve the system of equations:
y=2x
x + y = 9

• (6, 3)

• (3, 6)

• (-3, -6)

• no solution

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

• (0, -8)

• (-8, 0)

• (-16, -8)

• (-16, -8)

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)  

Solve the system of equations:
y=2x
x + y = 9

• (6, 3)

• (3, 6)

• (-3, -6)

• no solution

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

What is the solution to this system of equations?
4x + y = 6
x - 2y = 6

• (2,-2)

• (1,2)

• ( 1/2 , 4 )

• (-2,2)