Question 275109

{{{ 3e^(4x+7)=9 }}}
{{{ e^(4x+7)=3 }}}
{{{ ln(e^(4x+7)) = ln(3) }}}
{{{ 4x+7 = ln(3) }}}
{{{ 4x = ln(3)-7 }}}
{{{ x = (ln(3)-7)/4 }}}
{{{ x = -1.4753 }}}