1. Solving a System with Three Variables and Three Unknowns

2. Solving a 3 Variable System Solve the system: Must be the same 2 variables! 2. Solve the new system 3. Solve for the 3 rd Variable 4. Solution: + + + 1. Use Elimination to write a 2-Variable System

3. Solving a 3 Variable System Solve the system: 2. Solve the new system 3. Solve for the 3 rd Variable 4. Solution: + 1. Use Elimination to write a 2-Variable System You must multiply to eliminate + + Multiply 2 nd by 3 Multipliy 2 nd by 2 1 2 3 1 2 2 3