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five
100

x+y=6

y=-x+6

100

x-y=4

y=x-4

100

2x+y=8

y=-2x+8

100

x+2y=10

y=-1/2x+5 

100

3x+y=12

y=-3x+12

200

2x+3y=9

y=-2/3x+3

200

4x−y=7

y=4x−7

200

5x+2y=6

y=-5/2x+3

200

3x−2y=8

y=3/2x-4

200

6x+3y=12

y=-2x+4

300

−2x+y=5

y=2x+5

300

3x+4y=−8

y=-3/4x-2

300

−4x−2y=6

y=-2x-3

300

7x−3y=−9

y=7/3x+3

300

−5x+2y=10

y=5/2x+5

400

8x−4y=−12

y=2x+3

400

12x+5y=−20

y=-12/5x-4

400

−7x−3y=15

y=-7/3x-5

400

4x+6y=12

y=-2/3x+2

400

6x−4y=8

y=3/2x-2

500

10x+5y=15

y=-2x+3

500

3x+6y=−12

y=-1/2x-2

500

8x+6y=18

y=-4/3x+3

500

-6x+4y=12

y=3/2x+3

500

9x-6y=-18

y=3/2x+3