Download Day 3 Elimination CW

Coord. Algebra Support
Systems by Elimination
2.7 Practice
Name: ________________________________________________ Date: _______________________
Solving Systems of Equations by Elimination (Multiplication)
Solve each of the following using the method of elimination:
1. 2x + y = 11
x+y=9
2. 3x + y = 1
2x + 3y = -11
3. 9x + 2y = 2
-4x – y = -1
4. 3x – 2y = -7
2x – 5y = 10
5. 9x + 6y = 12
8x + 3y = 13
6. 3x + 2y = 6
2x – 3y = 17
7. 2x + 8y = 24
x – 2y = 0
8. 4x – 3y = 22
2x – y = 10
Coord. Algebra Support
Systems by Elimination
9. 2x + y = 13
-x + 2y = 1
10. 3x – y = 2
x + 2y = 3
11. 4x – y = 9
5x + 2y = 8
12. 4x – 3y = -8
2x + 2y = 3
13. -2x + 2y = 5
4x – 4y = -10
14. 3x + 8y = -5
-2x + 2y = 18
2.7 Practice
Solve by the given method:
2x  y  6
15. Solve by graphing:
16. Solve by substitution:
y  2x  2
6
4
2
-6
-4
-2
2
-2
-4
-6
4
6
x  2 y  1
x  3y  4
Coord. Algebra Support
Systems by Elimination
2.7 Practice