Question

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Answer 1

Step-by-step explanation:

a) let no. be x

then, three times mean=3x

3x+11=56

3x=56-11

3x=45

x=45÷3

x=15

b) let no. be x

then, eight times mean= 8x

8x+42=32

8x=32-42

8x= -10

x=-10÷8

x= -1.28

Answer 2

Step-by-step explanation:

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