Question

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

Answer 1

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