393(в,г)396(б)397(а). Created by SergeyPereliaev. matematika-ru

393(в,г)396(б)397(а)...

November 2021 1 14 Report

393(в,г)396(б)397(а)

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Ayten89 393
в) (256-х)-156 при х=44
100-х= 100-44=56
(256-х)-156 при х=87
100-87=13

г)238-(38+а) при а=78
238-38-а=200-а=200-78=122
238-(38+а) при а=0
238-38-а=200-а=200-0=200

№396
б) 87-(41+y)=22
87-41-y=22
87-41-22=y
y=24
проверка
87-(41+24)=22
22=22

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