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Find the value of $x$ that satisfies $3(2^{1-x}) = 7^x$. Give the answer in the form $\frac{\ln a}{\ln b}$, where $a$ and $b$ are integers.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Find the value of $x$ that satisfies $3(2^{1-x}) = 7^x$. Give the answer in the form $\frac{\ln a}{\ln b}$, where $a$ and $b$ are integers.