Предмет: Математика, автор: заводская

Помогите решить уровнения.387:х=513:57,у:6=54*8,3210-х=665:7.

Ответы

Автор ответа: singerofneka

1)387:х=513:57
387:х=9
х=387:9
х=43
ответ:х=43

2)у:6=54*8
у:6=432
у=432*6
у=2592
ответ:у=2592

3)3210-х=665:7
3210-х=95
х=3210-95
х=3115
ответ:х=3115

заводская: спасибо

Автор ответа: 987654321345

387:x=513:57
387:x=9
x=387:9
x=43
387:43=513:57
9=9

y:6=54*8
y:6=432
y=432*6
y=2592
2592:6=54*8
431=432

3210-x=665:7
3210-x=95
x=3210-95
x=3115
3210-3115=665:7
95=95

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