Question 74776
{{{1 - 2 ln x=-4}}}
{{{- 2 ln x=-5}}}Subtract 1 from both sides
{{{ln x=(-5/-2)}}}Divide both sides by -2
{{{e^(ln x)=e^(5/2)}}}Raise both sides with base e (this undoes the natural log)
{{{x=12.1825}}}
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Check:
{{{1-2(ln(12.1825))=-4}}}
{{{1-2(2.5)=-4}}}
{{{1-2(2.5)=-4}}}
{{{1-5=-4}}}
{{{-4=-4}}}works