Solve Equations Using Substitution

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)

How many solutions does the graph have?

• One solution

• No solution

• Infinite solutions

Solve the following system of equations algebraically using substitution method.

• (-1, 1)

• (1, -1)

• (0, 1)

• (1, 0)

Solve the following system of equations algebraically using substitution method.

• (-1, -1)

• (2, -1)

• (-1, 2)

• (-1, -2)

Solve the following system of equations algebraically using substitution method.

• Infinite solutions

• (0, 0)

• (1, 1)

• (1, 0)

Solve the following system of equations algebraically using substitution method.

• (-3, 0)

• (3, 0)

• (-3, -3)

• (3, 3)

Solve the following system of equations algebraically using substitution method.

• (4, 5)

• (4, -5)

• (-4, -5)

• (-5, -4)

Solve the system using substitution:

x + y = 19

y = 3x - 1

• (14, 5)

• (11, 8)

• (5, 14)

• (8, 11)

Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1

• Substitution

• Elimination

• Graphing

• None