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If (23x-1+10)÷7=6, then x is equal …

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If (2^3x-1+10)÷7=6, then x is equal To?

Posted by Pradhyumn Soni 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Naveen Sharma 7 years, 2 months ago

Ans. \({{{2^{3x-1}} + 10} \over 7} = 6\)

Cross Multiply, We Get

=> \({{{2^{3x-1}} + 10} }= 42\)

=> \(2^{3x-1} = 32\)

=> \(2^{3x-1} = {2^5}\)

on comparing , we get

=> 3x -1 = 5

=> 3x = 6

=> x = 2

0Thank You

ANSWER

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