Algebra 1 – Simpson Name:______________________________________ Period: _______

Directions: Solve each system below using graphing. Then use your answer to eliminate suspects, weapons or places to figure out who killed Mr. & Mrs. System.

1. −4 x+ y=3y=−x−2

2. y=−15 x+2 y=8

3. y=−2x+2y=−2x+1

4. 2 y=−x−4

y=−32x+2

5. x=2y=−3x−1

6. 3 y=x+3x+ y=1

Directions: Solve each system below using substitution.

7. 5 x−2 y=43 x+ y=9

8. 3 x−5 y=13x=2 y+5

9. 3 x−5 y=6y=−x+2

10. y=−2x+5y=4 x−1

11. y=−35 x− y=13

12. y=x4 x−2 y=8

Directions: Solve each system below using elimination.

13. 4 x+3 y=93 x+4 y=12

14. −3 x+7 y=−1−2 x+5 y=0

15. 7 x−3 y=−53 x+2 y=11

16. 7 x+2 y=−13 x−4 y=19

17. 5 x−3 y=164 x+5 y=−2

18. 4 x−3 y=−20−x−8 y=5

Mr. and Mrs. System were killed by _________________________ with a _______________________ in the __________________________________.

HELP! There has been a murder of Mr. & Mrs. System. They left clues behind that only you can solve!

Suspects:

□ Ms. Simpson (-1, -1)□ Mr. Donlon (2, 3)□ Mr. Morris (Infinite)□ Ms. Chalifoux (1, 3)□ Mr. Tucci (5, 2)□ Dr. Wadness (1, -4)

Weapons:

□ Candlestick (3, 1)□ Revolver (2, -1)□ Knife (4, 4)□ Rope (2, -7)□ Lead Pipe (-5, 0)□ Wrench (No Solution)□ Calculator (0, 1)

Rooms:

□ C317 (4, -4)□ Library (0, 2)□ Main Office (0, 3)□ Elevator (1, 4)□ Bathroom (1, -2)□ Locker (2, -2)□ Gym (2, -3)□ Pool (2, 0)

Algebra 1 – Simpson Name:______________________________________ Period: _______

Directions: Solve each system below using graphing. Then use your answer to eliminate suspects, weapons or places to figure out who killed Mr. & Mrs. System.

1. −4 x+ y=3y=−x−2

2. y=−15 x+2 y=8

3. y=−2x+2y=−2x+1

4. 2 y=−x−4

y=−32x+2

5. x=2y=−3x−1

6. 3 y=x+3x+ y=1

Directions: Solve each system below using substitution.

7. 5 x−2 y=43 x+ y=9

8. 3 x−5 y=13x=2 y+5

9. 3 x−5 y=6y=−x+2

10. y=−2x+5y=4 x−1

11. y=−35 x− y=13

12. y=x4 x−2 y=8

Directions: Solve each system below using elimination.

13. 4 x+3 y=93 x+4 y=12

14. −3 x+7 y=−1−2 x+5 y=0

15. 7 x−3 y=−53 x+2 y=11

16. 7 x+2 y=−13 x−4 y=19

17. 5 x−3 y=164 x+5 y=−2

18. 4 x−3 y=−20−x−8 y=5

Mr. and Mrs. System were killed by _________________________ with a _______________________ in the __________________________________.

HELP! There has been a murder of Mr. & Mrs. System. They left clues behind that only you can solve!

Suspects:

□ Ms. Simpson □ Mr. Donlon □ Mr. Morris □ Ms. Chalifoux □ Mr. Tucci □ Dr. Wadness

Weapons:

□ Candlestick □ Revolver□ Knife□ Rope□ Lead Pipe□ Wrench□ Calculator

Rooms:

□ C317□ Library□ Main Office□ Elevator□ Bathroom□ Locker□ Gym□ Pool