(X)r=e

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Solution for (X)r=e equation: 


Simplifying
(X) * r = e

Multiply X * r
rX = e

Solving
rX = e

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by 'X'.
r = eX-1

Simplifying
r = eX-1

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