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log_(2)(3x - 8) = 6Please show your work!

User Luu
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1 Answer

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Logarithmic equations

We know that the following relation is satisfied:


\begin{gathered} \log _ab=c \\ a^c=b \end{gathered}

We use this relation in the given formula:


\begin{gathered} \log _2(3x-8)=6 \\ \downarrow \\ 2^6=3x-8 \end{gathered}

Using this equation we can find x:


\begin{gathered} 2^6=3x-8 \\ \downarrow \\ 64=3x-8 \\ \downarrow \\ 64+8=3x \\ 72=3x \\ (72)/(3)=x \\ 24=x \end{gathered}

Answer: x = 24

User Vons
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