Let's solve the exponential equation 4ex = 80. (a) First, we isolate ex to ge

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Let's solve the exponential equation 
4ex = 80.
 
(a) First, we isolate ex to get the equivalent equation
804 
 
.
 

(b) Next, we take ln of each side to get the equivalent equation
Jul 17th, 2015

Thank you for the opportunity to help you with your question!

(a) First, we isolate ex to get the equivalent equation  :      e^x = 20


 
(b) Next, we take ln of each side to get the equivalent equation  :  ln(e^x) = ln(20)  so : x = ln(20)


Good Luck 

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Jul 17th, 2015

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