Предмет: Математика, автор: devilmemfis74

Помогите решить уравнение
(X-11)×55=660
(X-10)×72=1368

Ответы

Автор ответа: triador55

1

1)(x-11)×55=660

55x-605=660

55x=660-605

55x=1265

x=1265/55

x=23

2)(x-10)×72=1368

72x-720=1368

72x=1368+720

72x=2088

x=2088/72

x=29

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