Substituting for a Variable

A

100

x=4 

x + 2 

6

200

x=10

x² + 5 

30

300

x=7

1653 - x

1646

400

x=15

10x 

150

500

g=11

2g + g

33

B

100

x=20

x - 10 +5

15

200

x= 610

2x

1220

300

x=13

x + 10 - x

10

400

x=50

x ÷  2

25

500

p=12

4p + 5

53

C

100

x=2

x² + 32

36

200

x=30

x - 12 

18

300

x=14

y = 10

x + y

24

400

x= 20

3x

60

500

e=5

5e - 2

23

D

100

x = 7

100x

700

200

x = 12

100 - x

88

300

b = 6

c = 10

b x c

60

400

x = 4

x³

64

500

b = 4

120 x b

480