How do you solve for x in $r x = 8 = e$ $rx=8=e$ ?

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Answer 1 · 2016-07-26T15:26:20

Is this question correct?

$e$ $e$ is normally used as a reserved constant and is of value

$2.71818....$ It is one of the 'Irrational numbers'

So as the constant $e=2.71818..$ it is not correct to write $8=e$

$e$ is so important that it is even used as a logarithmic base normally written as 'ln'

So in the same way you could have log(10) you can have ln(10)

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$color(red)("Assumption: The question is wrong")$

Suppose the question should read as: $color(brown)(" " rx=8)$

Then divide both sides by $color(blue)( r)$ giving:

$" "color(brown)(r/(color(blue)(r))xx x=8/(color(blue)(r)))$

But $r/r=1$ giving:

$" "x=8/r$

How do you solve for x in rx=8=erx=8=erx=8=e?