for solving this equation first you should add -6 on both sides of the equation so you will have:
-1/4x = -6
then you can multiply both sides by -4 so you will have:
x = -6 * -4 = 24
and it is positive because when two negative numbers multiply by each other you will have a positive answer so the answer is B.24 :)))
i hope this is helpful
have a nice day