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Substitution
Elimination
Level 1
Elimination
Level 2
Elimination
Level 3
Elimination
Level 4
100

y = 3x + 1

y = 6x + 10

x = -3 , y = -8

100

4x + 9y = 29

6x - 9y = 21

x = 5, y = 1

100

x + 5y = 13

x + y = -3

x = -7, y = 4

100

- 14x - 6y = 14

7x + 5y = 7

x = -4, y= 7

100

2x + 3y = 5

3x + 8y = -3

x = 7, y = -3

200

y = -2x + 13

y = 4x - 11

x = 4, y = 5

200

2x - 2y = -18

5x + 2y = -24

x = -6, y = 3

200
-2x + 4y = 8 

x + 4y = 26

x = 6, y = 5

200

9x - 7y = 23

18x + 9y = 0

x = 1, y = -2

200

-3x + 2y = 14

-2x - 3y = 5

x = -4, y = 1

300

4x + 2y = -20

y = x - 4

x = -2, y = -6

300

-8x - 5y = 18

8x + 7y = -22

x = -1, y = -2

300

-5x - 6y = 14 

3x - 6y = -18

x = -4, y = 1

300

x - 2y = -7

3x - 4y = -15

x = -1, y = 3

300

-3x + 5y = -15

-5x - 3y = 9

x = 0, y = -3

400

5x - y = 21

y = -7x + 15

x = 3, y = -6

400

5x - 4y = -8

-5x + 6y = 12

x = 0, y = 2

400

-8x + 2y = 28

-8x - 7y = 10

x = -3, y = 2

400

-x + 3y = -15

7x + 6y = -3

x = 3, y = -4

400

-6x + 5y = 28

7x - 4y = -29

x = -3, y = 2

500

y = -8x - 3

8x + 4y = 12

x = -1, y = 5

500

4x - 5y = 7 

-8x + 5y = 1

x = -2, y = -3

500

-2x - 4y = 8

-5x - 4y = -10

x = 6, y = -5

500

-8x + 12y = 16

-6x - 6y = -18 

x = 1, y = 2

500

-9x + 6y = 18

-10x + 7y = 19

x = -4, y = -3