Substitution of Variables

Solve the system.

Is the student finished solving?

• No, you need to find what y equals.

• No, you can't have negative answers.

• There is no solution.

Which is the best method for solving this system of equations?

• Substitution

• Equal Values

• Elimination

• (2, -2)
• (2, 2)
• (-2, 2)
• (-2, -2)

Solve the system of equations using the substitution method.

• (-4, 11)

• (6.75, -2.25)

• No Solution

• (7.75, -.125)

Solve the system of equations using the substitution method.

• (-7, 4)

• Infinitely Many Solutions

• (13, -5)

• (0, -8)

Solve the system of equations using the substitution method.

• (1, 3)

• (-7, -4)

• Infinitely Many Solutions

• (4.25, -.65)

Define the variables, set up a system of equations and solve using the substitution method.

• 2 Buses & 3 Vans

• 3 Buses & 2 Vans

• 4 Buses & 2 Vans

• 2 Buses & 4 Vans

Determine if the system has one solution, infinitely many solutions, or no solution.

• One Solution

• Infinitely Many Solutions

• No Solution

Determine if the system has one solution, infinitely many solutions, or no solution.

• One Solution

• Infinitely Many Solutions

• No Solution