Substitution Elimination Jeopardy

Elimination 1

100

8x+y=19

-8x-6y=6

(3,-5)

200

-2x+2y=8

9x+2y=8

(0,4)

300

-3x+8y=-9

7x-4y=-23

(-5,-3)

400

-20x-7y=8

10x-3y=22

(1,-4)

Substitution 1

100

y=-6

-3x-y=3

(1,-6)

200

-x-6y=0

y=-1

(6,-1)

300

-3x-3y=-18

y=x-2

(4,2)

400

-2x+5y=1

y=-2x-7

(-3,-1)

Elimination 2

100

-5x-y=-7

5x-3y=-21

(0,7)

200

-4x+5y=17

-4x+6y=18

(-3,1)

300

-3x-12y=12

6x-6y=6

(0,-1)

400

-7x-6y=-1

-6x-12y=6

(1,-1)

Substitution 2

100

-3x+5y=-7

y=1

(4,1)

200

y=-6

3x-y=15

(3,-6)

300

y=x-4

-2x+4y=-4

(6,2)

400

y=3x+4

-x-3y=18

(-3,-5)

Mystery

100

-8x+8y=8

-8x+7y=11

(-4,-3)

200

y=5x-18

-x+5y=-18

(3,-3)

300

8x-y=9

-9x+9y=-18

(1,-1)

400

3x-6y=0

y=2x

(0,0)