Find the value of -x- such that - 3x-7- 81-1

3^x 7÷81=1 3^x 7=81 3^x 7=3^4 x 7=4 x = 11 ...

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Exponential Representation for Irrational Numbers

Find the valu...

Question

Find the value of $^{'} x^{'}$ such that :
$3^{x - 7} \div 81 = 1$

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