Addition
x + 8 = 15
x = 7
x – 9 = 2
x = 11
5c = 50
c = 10
k ÷ 2 = 9
k = 18
7a + 2 = 51
a = 7
x + 12 = 25
x = 13
t – 21 = 6
t = 27
4d = 32
d = 8
7 = g ÷ 3
g = 21
7x – 8 = 13
x = 3
30 + x = 50
x = 20
v – 14 = 26
v = 40
30 = 15x
x = 2
m ÷ 7 = 8
m = 56
3y + 9 = 51
y = 14
a + 3.25 = 7.25
a = 4
h – 3.5 = 9
h = 12.5
108 = 9x
x = 12
k ÷ 2.75 = 10
k = 27.5
9x + 3 = 39
x = 4
7 = 0.25 + y
y = 6.75
d – 2.75 = 7.25
d = 10
4.5 = 2x
x = 2.25
5 = h ÷ 1.25
h = 6.25
n/4 + 38 = 49
n = 44