1. 2.2 Solving Systems of Equations in 3 Variables
Objectives: Solve Systems of equations involving 3 variables algebraically.

2. See page 73
Ex. 1)
Solve by elimination.
5x – 2y + z = 11
2x + y + 3z = 0
6x – 2y – 2z = 16
Ordered
Triple:
The solution to a system of equations in 3 variables.

3. Ex. 2)
Solve by substitution.
3y = -9z
4x + 2y – 2z = 0
-3x – y + 4z = -2
Ex. 3)
In the 1998 season, Sheryl Swoopes made 83% of her 86 attempted free throws. She made 244 of her 1-point, 2-point, and 3-point attempts, resulting in 453 points. Find the number of 1-point free throws, 2 point field goals, and 3-point field goals Swoopes made in the 1998 season.