Question 718400
The difference of a number and 12 times it's reciprocal equals 4
:
Just write what it says
n - {{{12/n}}} = 4
multiply by n
n^2 - 12 = 4n
n^2 - 4n - 12 = 0
factors to
(n-6)(n+2) = 0
two solutions
 n = 6
and
 n = -2
:
:
You can check both solutions in the original equation