 # Algebra February 10, 2015 1. Systems of Three Variables We have already seen a system of two equations used to solve two variables. Now we are going to.

## Presentation on theme: "Algebra February 10, 2015 1. Systems of Three Variables We have already seen a system of two equations used to solve two variables. Now we are going to."— Presentation transcript:

Algebra February 10, 2015 1

Systems of Three Variables We have already seen a system of two equations used to solve two variables. Now we are going to examine a system of three variables which requires three equations. 2

Systems of Three Equations Whenever you add another variable to the mix you MUST add another equation in order to solve it. 3

Systems of Three Equations: Process 4

2. We then use this information and plug it into the other two equations in place of the variable. 3. We then use these two new equations and proceed to work through them the same as we would with other two variable, two equation systems. 2. We then use this information and plug it into the other two equations in place of the variable. 3. We then use these two new equations and proceed to work through them the same as we would with other two variable, two equation systems. 5

Example 1 6

Example 1-Continued 7

8

9

10

Example 1- Continued 11

Example 2 12

Example 2- Continued 13

Example 2- Continued 14

Example 2- Continued 15

Example 2- Continued 16

Example 2- Continued 17

Example 2-Continued 18

Example 2- Continued 19

Homework Assignment 7-4 20

Download ppt "Algebra February 10, 2015 1. Systems of Three Variables We have already seen a system of two equations used to solve two variables. Now we are going to."

Similar presentations