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dikali silang jadinya
(x+2) x 2 = (2x+1) x 3
2x + 4 = 6x + 3
2x - 6x = 3-4
-4x = -1
x = 1/4
note = yang diatas dikali 1/3 dan dikali 1/2 karna (x+2) per 3 = (2x+1) per 2 sama saja seperti (x+2) x 1/3 = (2x+1) x 1/2