[DiDok]

I'm VERY rusty at math so i can't solve it (mistakes), but since you have

j/11 = x+5 (x is a result of division, we don't care about it)

you must transform the equation so it'll look like this:

(3j + 2)/11 = kx+l

where l is the remainder

EDIT:
I did it, answer is 6 but i had to modify it xD

Quote:

j/11 = x+5 | *3 3j/11 = 3x+15 | +2 (3j+2)/11 = 3x+17 BUT since 17 is divisible by 11 with remainder: (3j+2)/11 = 4x+6

I'm not taking any responsibility for this, but since Eng. Drebin says it's 6, it kinda looks good :P