Предмет: Математика, автор: dkurtkaya83

9 риши уравнение
12000•х=800•3
80000:у=4000-2000

Ответы

Автор ответа: proverkap714

1

1.

12000•х=800•3

12000•х=2400

х=12000:2400

х=5

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

12000•5=800•3

Відповідь: х=5

2.

80000:у=4000-2000

80000:у=2000

у=80000:2000

у=40

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

80000:40=4000-2000

Відповідь: у=40

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