Пошаговое объяснение:
№1
а = -4; в = 12; с = -6; d = 8
-а + в + с - d = -(-4) + 12 + (-6) - 8 =
4 + 12 - 6 - 8 = 2
№2
а = 3 1/3; в = 2 1/2; с = -1 5/6; d = 5
-а + в + с - d = -3 1/3 + 2 1/2 + (-1 5/6) - 5 =
-3 2/6 + 2 3/6 - 1 5/6 - 5 =
-2 8/6 + 2 3/6 - 1 5/6 - 5 =
-5/6 - 1 5/6 - 5 = -1 10/6 - 5 =
-2 4/6 - 5 = -7 4/6 = -7 2/3
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Verified answer
Пошаговое объяснение:
№1
а = -4; в = 12; с = -6; d = 8
-а + в + с - d = -(-4) + 12 + (-6) - 8 =
4 + 12 - 6 - 8 = 2
№2
а = 3 1/3; в = 2 1/2; с = -1 5/6; d = 5
-а + в + с - d = -3 1/3 + 2 1/2 + (-1 5/6) - 5 =
-3 2/6 + 2 3/6 - 1 5/6 - 5 =
-2 8/6 + 2 3/6 - 1 5/6 - 5 =
-5/6 - 1 5/6 - 5 = -1 10/6 - 5 =
-2 4/6 - 5 = -7 4/6 = -7 2/3