Объяснение:
a) x + y + z = 5 - 8 = -3
б) x + 5z + y = 5 + 5*(-8)= 5 - 40 = -35
в) ( x + y ) + 2 = 5 + 2 = 7
г) z/(x + y + z) = -8/(5 - 8) = -8/(-3) = 8/3
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Объяснение:
a) x + y + z = 5 - 8 = -3
б) x + 5z + y = 5 + 5*(-8)= 5 - 40 = -35
в) ( x + y ) + 2 = 5 + 2 = 7
г) z/(x + y + z) = -8/(5 - 8) = -8/(-3) = 8/3