1. Algebra 2
Ch.3 Notes Page 15
P Solving Systems Algebraically

2. Solving Systems
A system of Equations is a set of two or more equations that use the same variables.
The solution is the (x, y) that works in both (all) of the equations.

3. Use Substitution to find x and y.
y = x + 3 y = -x + 1

4. x + 3y = 12 and -2x + 4y = 9

5. -2x + 5y = -2 and x - 3y = 3

6. Solving Systems by Elimination
x + -3y = 11
4x + 3y = 14

7. Solving Systems by Elimination
x + 3y = 12
-2x + 4y = 9

8. Solving Systems by Elimination
3x + 7y = 15
5x + 2y = -4

9. Special Problems
3x - y = 3 -4x + 2y = 8
-3x + y = x - 2y = 12

10. HW #14
3-2 P128
#1,4,5,8,18-20,24,25,28,32,33,36,37,67,68
Please put your name and class period at the top of the homework. Also include the homework number.