Substitution Jeopardy

Both solved for y

100

y = -4x - 19

y = x + 6

(-5,1)

300

y = -8x - 21

y = 3x + 1

(-2,-5)

500

y = -6

y = 8x - 6

(0,-6)

Variable Already by Itself

100

Solve & check:

x = 5 - 10y

-2x - 7y = 3

x = -5, y = 1

300

Solve & Check:

y = 9x - 6

x + 3y = -18

x = 0, y = -6

500

Solve & Check:

x = 10y + 4

3x + 5y = 12

x = 4, y = 0

Solve for a Variable

100

Solve & Check:

3x - 7y = 7

x - 10y = 10

x = 0, y = -1

300

Solve & Check:

-2x + y = -5

-6x + 4y = -24

x = -2, y = -9

500

Solve & Check:

-x + 3y = -5

-2x + 4y = -4

x = -4, y = -3