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Given 2^x=8^(y+1)\ and\ 9^y=3^(x-9) , th...

Given `2^x=8^(y+1)\ and\ 9^y=3^(x-9)` , then the value of `x+y` is a. `18` b. `21` c. `24` d. `27`

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RS AGGARWAL-SURDS AND INDICES-All Questions
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