27-11-2020
Mathematics

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Prove: If the number a+7b is divisible by 17 , then the number 10a+2b is divisible by 17

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27-11-2020

Answer:

9a-5b=0.

Step-by-step explanation:

(a+7b)/17=(10a+2b)/17

a+7b=10a+2b

5b=9a

9a-5b=0

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