Question 595230
{{{5 - 3^x=-40}}}


{{{-3^x=-40-5}}}


{{{-3^x=-45}}}


{{{3^x=-45/(-1)}}}


{{{3^x=45}}}


{{{x=log(3,(45))}}}


{{{x=log((45))/log((3))}}}


{{{x=3.4650}}}



So the approximate answer is {{{x=3.4650}}}