Автор - vans0000

Найдите решение систем уравнений способом подстановки​

Ответ

Автор - сок111213

1) - y + 0.5 + 2y = 0.3 \ y + 0.5 = 0.3 \ y = 0.3 - 0.5 \ y =  - 0.2 \  \ x =  - y + 0.5 = - ( - 0.2) + 0.5 = 0.2 + 0.5 = 0.7

 - x - 6. 9- 8x = 83.1 \  - 9x = 83.1 + 6.9 \  - 9x = 90 \ x = 90 div ( - 9) \ x =  - 10 \ y =  - x - 6.9 =  - ( - 10) - 6.9 = 10 - 6.9 = 3.1

21x + 0.9 - x =  - 15.1 \ 20x =  - 15.1 - 0.9 \ 20x =  - 16 \ x =  frac{ - 16}{ - 20}  \ x =  frac{4}{5}  \ x = 0.8 \  \ y = 0.9 - x = 0.9 - 0.8 = 0.1

Ответы и объяснения

Сервис носит ознакомительный характер, вся информация, а в частности вопросы и ответы, которые задают и отвечают пользователи.
© 2026 Все права защищены Политика конфиденциальности Контакты
search points attachment profile arrow left arrow right star heart verified symbols equation arrow-down question mark check menu accountancyadministrationagriculturalalgebraallarabicartart_musicbelarusbelarus_altbiologybusinesscatalachemistrychineseeconomicsegzamenglishentrepreneurshipenvironmentethicseuskarafirst_aidfrenchgalegogeographygeologygeometrygermangrammarhealthhistoryindia_langindonesian_langinformaticsitalianjapanesekazachkazach_altkoreanlanguagelatinlawlife_scienceliteraturelogicmathematicsmusicnigerian_langother_languagesotherspedagogicsphilosophyphysical_educationphysicspoliticspsychologyreligionrpa_langrussianrussian_altsciencesecurityskillssocial_sciencesociologyspanishstatisticstechnologytourismtrafficukrainianukrainian_altukrainian_literaturewos_civilisation accountancyadministrationagriculturalalgebraall_1arabicartart_music_2belarusbelarus_altbiologybusiness_2catalachemistry_1chineseeconomicsexam_3englishentrepreneurshipenvironment_2ethicseuskarasecurity_1frenchgalegogeography_4geology_4geometrygermangrammarhealthhistoryindia-langindonesian-langinformaticsitalianjapanesekazachAsset 230koreanlanguagelatinlawlife-scienceliteraturelogic_2mathematicsmusicnigerian-langotherlanguagesother_1pedagogicsphilosophyphysical_educationphysicspoliticspsychologyreligion_1rpa-langrussianrussian_altsciencesecurity_3_mskills_1allsocial_science_5_msociologyspanishstatisticstechnologytourismtrafficukrainianukrainian_altukrainian_literaturewos_civilisation