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hot re arrange and get the unkown


bobby
Posts: 1
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(@bobby)
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Joined: 1 year ago

how do i re arrange and solve to get the unkown x

0.64=e^(-22x/18270) how do i get x

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Gaurang
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(@gaurang)
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Joined: 1 year ago

natural log both sides to remove e. Then make x the subject of the equation 

 

Note : 

Natural log or Ln will cancel e. For example- ln(e)=1

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Further_Maths_Student
Posts: 274
(@further_maths_student)
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Joined: 3 years ago

^What Gaurang said

e.g. if you have e^(2x) = 5

You take ln of both sides, which makes you end up with 2x = ln(5)

Then you just solve for x

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