Step-by-step explanation:
let's simply try and solve this, and see where we end up.
x/2 = x/3 - 12
just by looking at it : we are comparing seemingly something larger (x/2) with something smaller (x/3), and we subtract even something more from the smaller number (- 12).
this looks therefore like a negative solution.
let's try to get rid of the fractions.
first we multiply everything by 2 :
x = 2x/3 - 24
then we multiply everything by 3 :
3x = 2x - 72
x = -72
aha ! we were right.
so, the solution set is {-72}.
and yes, by the way, this is a real number. but the solution contains only one number. so, the answer option with general x as all real numbers is wrong.