Addition
d + 8 = 24
16
d - 12 = 1
13
3 x d = 42
14
d / 8 = 7
56
d + 8 = -12
-20
28 + d = 43
15
d - 49 = 23
72
35 = d x 5
7
d / 25 = 11
275
10 - d = -14
24
32 = 5 + d
27
31 = d - 24
55
5 x d =140
28
d = 87 / 3
29
5x = -130
-26
81 = d + 49
32
d - 43 = 55
98
6 x d =360
60
23 = d / 12
276
d / -4 = -12
48