Question

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Answer 1

a) 21 + 6 = 27

b) 7 * 3 = 21

c) 2 * (3 + 3) = 12

d) 3 * 7  + 4 = 25

e) 2 + 2 * 8 = 10 + 8

f) 3 * 5 - 7 = 3 + 5

a + 6 = 27

a = 27 - 6

a = 21

7b = 21

b = 21/7

b = 3

2 * (c + 3) = 12

2c + 6 = 12

2c = 12 - 6

2c = 6

c = 6/2

c = 3

3d + 4 = 25

3d = 25 - 4

3d = 21

d = 21/3

d = 7

2 + 2f = 10 + f

2f - f = 10 - 2

f = 8

3g - 7 = 3 + g

3g - 1 = 3 + 7

2g = 10

g = 10/2

g = 5