Jawabanmu

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2013-12-21T19:26:24+07:00
(4c-6c)+(8d-2d)+(-3e+2e)
= -2c+ 6d -e
2013-12-21T19:30:03+07:00
(4C+8D-3E) - (6C+2D-2E) =

(4C-6C) (8D-2D) (-3E+2E)

-2C + 6D - E