в первом будет -71. Во втором будет 14
Пошаговое объяснение:
а) 21*(-4)-78:(-6)= -71
1) 21*(-4)=-84
2) 78:(-6)=-13
3) -84-(-13)= -71
б) -216:(-12)+96:(89-113)= 14
1) 89-113= -24
2) -216:(-12)=18
3) 96:(-24)= -4
4) 18+(-4)=14
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ответ: 21*(-4) - 78 : (-6)=-84+13=-71
216 : (-12) + 96 : (89 - 113)=-18+96/(-24)=-18-4=-22.
Пошаговое объяснение: