How do you solve #4e^x=91#?

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Answer 1 · 2018-07-03T13:43:17

#color(blue)(x=ln(91/4)~~3.124565145#

#4e^x=91#

divide by 4:

#e^x=91/4#

Taking natural logarithms of both sides:

#xln(e)=ln(91/4)#

#ln(e)=1#

#:.#

#x=ln(91/4)~~3.124565145#