( - 0, 12) + 3, 45 =8, 12 x ( - 1, 2) =(2, 12 - 0, 5) x (5, 3 + 4, 3) =(5, 3 + 4, 2) - ( - 4, 67) =(0, 65 - 3, 21) x ( - 8, 12) =[(15, 3 + 3, 7)x2, 8] - 2, 9 =?
( - 0, 12) + 3, 45 = 8, 12 x ( - 1, 2) = (2, 12 - 0, 5) x (5, 3 + 4, 3) = (5, 3 + 4, 2) - ( - 4, 67) = (0, 65 - 3, 21) x ( - 8, 12) = [(15, 3 + 3, 7)x2, 8] - 2, 9 =.
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