Solve for x

[nycmathguy]

 

[MathLover1]

4e^(x-1)=60........take natural log of both sides

ln(4e^(x-1))=ln(60)
ln(4)+ln(e^(x-1))=ln(60)
ln(e^(x-1))=ln(60)-ln(4)
(x-1)ln(e)=ln(60/4)
(x-1)*1=ln(15)
x-1=ln(15)
x= 1+ln(15)

 

[nycmathguy]

4e^(x-1)=60........take natural log of both sides

ln(4e^(x-1))=ln(60)
ln(4)+ln(e^(x-1))=ln(60)
ln(e^(x-1))=ln(60)-ln(4)
(x-1)ln(e)=ln(60/4)
(x-1)*1=ln(15)
x-1=ln(15)
x= 1+ln(15)

Cool. There are 3 unanswered threads in the Calculus forum.