Equations

Single Step - Positive

100

N + 7 = 21

N = 14

200

E/5 = 20

E = 4

300

V x 8 = 64

V = 8

400

E - 39 = 21

 E = 60

500

74 - 32 = R + 21

R = 21

Single Step - Negative

100

G + 21 = 7

G = -14

200

O/5 = -20

O = -4

300

N x -50

N = 500

400

N - 21 = -39

N = -18

500

32 - 75 = A + 42

A = -85

Two Step - Positive

100

G/5 + 6 = 7

G = 5

200

7 + I - 4 = 21

I = 18

300

8V - 4 = 4

V = 64

400

-E/6 - 15 = -16

E = 6

500

-8 = 4Y/-3

Y = 6

Two Step - Negative

100

7O - 4 = -32

O = -4

200

3U + 15 = -12

U = -9

300

U/7 + 12 = 3

U = -63

400

P/6 + 4 = -8 

P = -72

500

7 = -11 -N/3 

N = -54

Pot Luck

100

L - 3 + 7 = -2

L = -6

200

O/-6 + 4 = 12 

O = -48

300

-34 - S = 21 

S = -55

400

E/2 - 54 = 1/2

E = 109

500

6R - 17 = 2R + 3

R = 5