Question 481887
4+5e^-x=9
{{{5e^(-x) = 5}}}
{{{e^(-x) = 1}}}
x = 0
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also, In(4x)= 3
It's Ln, natural log.
ln(4x) = 3
{{{4x = e^3}}}
{{{x = (e^3)/4}}}
x =~ 5.021