Автор - iryna150

Поможіть розв'язати рівняння.

Ответ

Автор - VanillaBliss
6х = 3*10    х = 30/6 = 5

а(18:9) = 20   а = 20/2 = 10

9*4 + у = 100     у = 100 - 36 = 64

Ответ

Проверено экспертом

Автор - prettypushkova


а * (18 : 9) = 20                                  9 * 4 + у = 100

а * 2 = 20                                            36 + у = 100

а = 20 : 2                                             у = 100 - 36

а = 10                                                  у = 64

Проверка: 10 * (18 : 9) = 20               Проверка: 9 * 4 + 64 = 100

                  10 * 2 = 20                                           36 + 64 = 100

                   20 = 20                                                100 = 100 

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