Ответы на вопрос:
X- y - z = - 4 x + y - z = 2 - 2z = - 2 z = 1 x + y = 4 - 1 x + y = 3 2x - y = 1 - 1 2x - y = 0 x + y = 3 y = 3 - x 2x - ( 3 - x) = 0 2x - 3 + x = 0 3x = 3 x = 1 1 + y = 3 y = 3 - 1 y = 2 ответ x = 1; y = 2 ; z = 1 ================ проверка 1) 1 + 2 + 1 = 4 ; 4 = 4 2) 1 + 2 - 1 = 2 ; 2 = 2 3) 2 - 2 + 1 = 1 ; 1 = 1
Популярно: Алгебра
-
dasha01059813.04.2023 04:49
-
maksimstelmach29.05.2021 19:12
-
CrasH199024.01.2020 01:06
-
никита4272816.11.2022 05:04
-
AnnaMax11117.05.2020 12:13
-
karabanovaann19.12.2021 03:59
-
masha9form11.08.2021 08:46
-
dimagoncharenkp06wnh24.02.2023 09:13
-
Racamaxa27.09.2020 16:35
-
leeesy66407.08.2022 20:52