Question

|f| - 2/3=5/6

Answer 1

\[|f| = 5/6 + 2/3 = 5/6 + 4/6 = 9/6 = 3/2\]
f = +/- 3/2

Answer 2

given |f|-2/3=5/6
or, |f|=5/6+2/3
or, |f|=3/2
or, f=+3/2 ; -3/2