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18-04-2022
Mathematics

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Given a+b=7; a-b=3, find the following, 3^a divided by 3^b

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wegnerkolmp2741o wegnerkolmp2741o

18-04-2022

Answer:

27

Step-by-step explanation:

a+b=7; a-b=3

Add the two equations together

a+b=7

a-b=3

----------------

2a + 0b = 10

2a = 10

Divide by 2

2a/2 = 10/2

a = 5

a+b = 7

5+b = 7

b = 7-5

b = 2

3^a / 3^b = 3^(a-b) = 3^(5-2) = 3^3 = 27

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