Надо сорок вынести за скобки:
40 * 1, 12 - 40 * 8, 12 + 40 * 6 = 40 * (1, 12 - 8, 12 + 6) = 40 * (7,12 - 8,12) =
= 40 * (-1) = -40
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Надо сорок вынести за скобки:
40 * 1, 12 - 40 * 8, 12 + 40 * 6 = 40 * (1, 12 - 8, 12 + 6) = 40 * (7,12 - 8,12) =
= 40 * (-1) = -40