а) 2 - 3(а - 4) = 2 - 3а + 12 = 14 - 3а
б) (17 - 8а) - (а - 4) = 17 - 8а - а + 4 = 21 - 9а
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а) 2 - 3(а - 4) = 2 - 3а + 12 = 14 - 3а
б) (17 - 8а) - (а - 4) = 17 - 8а - а + 4 = 21 - 9а