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= 3/4-2/5i-2/3-5/6i
= 3/4-2/3-2/5i-5/6i
= (9/12-8/12) - (-10/30i-25/30i)
= 1/12 - (-35/30i)
= 1/12 + 35/30i
35/30i = 1/12
(35×12) = (1×30i)
420 = 30i
-30i = -420
i = -420/-30 = 14