Автор - ilsaf45tigr

x - 75 = 36 : 4 y + 30 = 85 - 20 без проверки

Ответ

Проверено экспертом

Автор - prettypushkova

х - 75 = 36 : 4

х - 75 = 9

х = 9 + 75

х = 84

- - - - - - - - - - - -

у + 30 = 85 - 20

у + 30 = 65

у = 65 - 30

у = 35


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