Question 401315
4e^(-0.3x) - 7 = 13
Add 7 to both sides
4e^(-0.3x) = 20
divide both sides by 4
e^(-0.3x) = 5
find the nat log of both sides (ln(e) = 1)
-.3x = ln(5)
-.3x = 1.609
divide both sides by -.3
x = {{{1.609/(-.3)}}}
x = -5.365