Предмет: Геометрия, автор: alesinaa909

1. Сума двох чисел дорівнює 12, а різниця цих двох чисел дорівнює 28.Знайди ці числа.

IUV: 20 -8
це не геометрія

Ответы

Автор ответа: severchenko

1

вот ……………………0000000

Приложения:

severchenko: вибачте, я помилилась)
х+у=12
х-у=28
х=12-у
12-у-у=28
х=12-у
12-2у=28
х=12-у
-2у=-16
х=12-у
у=-8
х=20

IUV: краще перенесіть виправлений розв'язок з коментаря у відповідь бо коментарі іноді губляться...

severchenko: так не можна(

IUV: зараз це вже пізно, а впродовж двох годин ви могли виправляти свою відповідь. для цього є піктограма - олівець. тиснеш її і виправляєш свою відповідь

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