+ = - = x y 42 x y 34 3x 5y 1 2x 5y 9 - = + = x 2y 12 x 6y 20

Algebra Block
Notes 7.3: Notes Solving Linear Systems by Elimination
Name
Wilson
Warm-up: Solve the system by substitution.
1.
3x + 2y = 8
x + 4y = -4
Objective:
2.
x – 5y = -3
4x – 3y = 5
Be able to find a solution of a system of equations by using Elimination.
One thing to remember about elimination is that you will_____________________________________.
Solve each of the following systems of equations using elimination.
1.
x + y = 42

x − y = 34
2.
3x − 5y = 1

2x + 5y = 9
3.
−x + 2y = 12

x + 6y = 20
4.
−3x + 4y = 9

3x + y = 6
5.
x + 7y = 12

3x − 5y = 10
6.
2 x + 3y = 18

5x − y = 11
7.
5x + 2y = 7

3x − y = 13
8.
4x + 3y = 8

x − 2y = 13