Substitution Method Part 2

One solution

100

Not on worksheet

y = x + 3

y = 4x + 21

(-6, -3)

200

Worksheet question #1

-9x + y = -5

-3x - y = -7

(1, 4)

300

Worksheet question #2

8x - y = 30

x - 9y = -14

(4, 2)

Mixed solutions

100

Not on worksheet

3x + 5y = -18

y = -2x - 12

(-6, 0)

200

Worksheet question #3

-3x + 3y = 4

x - y = 6

No solution

300

Worksheet question #4

-4x - 2y = 8

2x + y = -4

Infinite number of solutions

Mixed solutions

100

Not on worksheet

-6x + 3y = -12

y = 4x - 16

(6, 8)

200

Worksheet question #5

-18x - 3y = 8

6x + y = -11

No solution

300

Worksheet question #6

-3x - 9y = 15

x + 3y = -5

Infinite number of solutions