Addition
w + 6 = 7
w = 1
g - 2 = 10
g = 12
25 ÷ r = 5
r = 5
g + 8 = 12
g = 4
t - 6 = 2
t = 8
35 ÷ 5 = e
e = 7
3 + 6 = f
f = 9
w - 13 = 4
w = 17
n ÷ 42 = 7
n = 6
x + 4 = 12
x = 8
x - 5 = 12
x = 17
72 ÷ 8 = n
n = 9
4 + h = 15
h = 11
j - 34 = 22
j = 56
200 ÷ n = 20
n=10