Question

Реши уточнение (ו9-8):5=25-5

Answer 1

9х - 8):5 = 20
9х - 8 = 20*5
9х - 8 = 100
9х = 100 + 8
9х = 108
Х= 108 : 9
Х = 12
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Проверка
(12* 9 -8):5 = 25-5
(108 - 8):5 = 20
100 : 5 = 20
20 = 20