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Dafna11 [192]
3 years ago
9

Keisha is solving the equation 7^x=9.

Mathematics
1 answer:
olganol [36]3 years ago
3 0
\bf \textit{Logarithm of exponentials}\\\\
log_a\left( x^  b \right)\implies   b\cdot  log_a(x)\\\\
-------------------------------\\\\
7^x=9\implies \boxed{log(7^x)=log(9)}\implies x\cdot log(7)=log(9)
\\\\\\
x=\cfrac{log(9)}{log(7)}
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