Solve for x where loge(4+3x) = 2
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Solve for x where loge(4+3x) = 2

[From: ] [author: ] [Date: 11-06-19] [Hit: ]
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Solve for x where loge(4+3x) = 2?

answer is 1/3 (e^2 - 4)

i wonder how to do it

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ln (4+3x) = 2

e^2 = (4+3x)

3x = e^2 - 4

x = (e^2 -4) /3

answer

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raise both sides to a power of "e":

4+3x = e^2 (e^loge cancels)

3x = e^2 - 4 (subtract 4 from both sides)

x = 1/3 (e^2 - 4) (divide both sides by 3)

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To remove log operate e on both sides
then,
4+3x=e^2
3x=e^2-4
x=1/3(e^2-4)

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ln(4+3x) = 2
e^2=4+3x
e^2-4=3x
x=(e^2-4)/3
x=(1/3)(e^2-4)
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