Variables

Addition

100

2 + x = 6

x = 4

200

20 = 5 + b

b = 15

300

34 = y + 10

y = 24

400

27 + n = 42

n = 15

500

v + 13 = 47

v = 34

Subtraction

100

v - 3 = 1

v = 4

200

8 - y = 3

y = 5

300

12 - y = 4

y = 8

400

y - 13 = 20

y = 33

500

s - 24 = 77

s = 101

Multiplication

100

3t = 9

t = 3

200

24 = 4f

f = 6

300

7p = 63

p = 9

400

56 = 7w

w = 8

500

110 = 11r

r = 10

Division

100

2 = d / 2

d = 4

200

v / 3 = 2

v = 6

300

g / 6 = 7

g = 42

400

7 = z / 5

z = 35

500

e / 8 = 9

e = 72