3 years ago

What is the solution of 3+log(7x-2)=6

1 answer:

7 0

$D:7x-2\ \textgreater \ 0\\
D:7x\ \textgreater \ 2\\
D:x\ \textgreater \ \dfrac{2}{7}\\\\
3+\log(7x-2)=6\\
\log(7x-2)=3\\
10^3=7x-2\\
100=7x-2\\
7x=102\\
x=\dfrac{102}{7}$

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