Simple Solving Systems of Equations

What is the answer to the following system of equations?

2X + Y = 11

X - Y = 4

write your answer as two numbers in parentheses separated by comma with no spaces

What is the answer to the following system of equations?

X + 3Y = 23

X - 3Y = 17

write your answer as two numbers in parentheses separated by comma with no spaces

What is the solution to the following system of equations?

• X = 3 , Y =1

• X = 5, Y = 4

• X = 7, Y = 3

• X = 24, Y = 6

Solve the system of equations.

• (-7, 8)

• (-7, -6)

• (8, -7)

• No solution

• Infinite solutions

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph

• Don't touch

• Intersect

• Exist

Solve the following systems of equations using substitution:

2x + 8y = 20

y = 2

• (2, 2)

• (-2, 2)

• (2, -2)

• (0, 2)

Solve the system of equations.

• (11, 21)

• (3, 11)

• (11, -67)

• No solution

• Infinite solutions

Solve the following systems of equations using substitution:

2y + x = -15

x = 3y

• (-3, -9)

• (-9, -3)

• (-3, 9)

• (9, -3)

Solve the following systems of equations using substitution:

y = 8

y = -4x + 4

• (8, -1)

• (-28, 8)

• (-1, 8)

• (8, -28)

Solve the following systems of equations using substitution:

x = 6

y = 2x - 3

• (6, 6)

• (6, 9)

• (9, 6)

• (9, 9)