Systems of Equations Unit Review

Solve the system of Equation (x,y)
–2x + y = 10
4x – y = –14  

• (1,5)

• (6,2)

• (-2,6)

• (4,6)

Solve the system of Equation (x,y)
3x + y = –14
–2x – y = 9

• (-5,1)

• (5,-1)

• (1,4)

• (-1,4)

Solve the system of equations.

• (11, 21)

• (3, 11)

• (11, -67)

• No solution

• Infinite solutions

How many solutions will this system have?

• one solution

• no solution

• infinitely many solutions

How many solutions will this system have?

• one solution

• no solution

• infinitely many solutions

What could be the first step in solving this system using ELIMINATION?

• Add the two equations.

• Add 4 to both side sof the equations.

• Multiply the second equation by -1.

• Multiply the second equation by 2.

Solve the system below using substitution.

2x + y = 5

y = x - 4

• (3, -1)

• (1, -3)

• (1,1)

• (3, 0)

Solve the following system.

3x - 4y = 13

y = -3x - 7

• (3, 7_

• (3, 4)

• (-4, -1)

• (-1, -4)

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)

• (5, 1)

• (0.25, 2)

• ∅

What is the solution to the system?

• (0, 3)

• (1, -1)

• (-3, 1)

• (1, 3)