Home
О нас
Products
Services
Регистрация
Войти
Поиск
LizaForever14
@LizaForever14
July 2022
1
28
Report
Помогите пожалуйста! Очень прошу! Решите!
[tex] \frac{3x-1}{10} - \frac{4y+1}{5} = -3
^\frac{2x+1}{3} - \frac{3y-2}{8} = 3
[/tex]
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
LFP
Verified answer
Умножаем обе части уравнения
(3x - 1) / 10 - (4y + 1)/5 = -3 | * 10
(2x + 1)/3 - (3y - 2)/8 = 3 | * 24
3x - 1 -2*(4y + 1) = -30
8*(2x + 1) - 3*(3y - 2) = 72
Приводим подобные слагаемые
3x - 1 - 8y - 2 = -30
16x + 8 - 9y + 6 = 72
3x - 8y = -27
16x - 9y = 58
Выражаем х через у
x = (-27 + 8y)/3
16*(-27 + 8y)/3 - 9y = 58
Решаем второе уравнение
16*(-27 + 8y)/3 - 9y = 58 | *3
16*(-27+8y) - 27y = 174
-432 + 128y - 27y = 174
101y = 174 + 432
y = 6
Находим х
x = (-27 + 8*6)/3 = (-27 + 48) / 3 = 21/3 = 7
Ответ: (7 ;6)
2 votes
Thanks 1
More Questions From This User
See All
LizaForever14
August 2022 | 0 Ответы
pomogite reshit zadachu pozhalujsta dano w hcl 10 m caco3 60 g mhcl
Answer
LizaForever14
August 2022 | 0 Ответы
pomogite pozhalujstaskolko l uglekislogo gaza poluchaetsya pri razlozhenii 119 g
Answer
LizaForever14
August 2022 | 0 Ответы
pomogite pozhalujsta reshit dayu 100 ballov storona cd parallelogramma abcd pr
Answer
LizaForever14
August 2022 | 0 Ответы
pomogite pozhalujsta dano treugolnik avs ugol a 90 gradusov av 12 sm vs
Answer
LizaForever14
August 2022 | 0 Ответы
ukazhitryadok u yakomu vsidiyeprikmetniki vzhitou formi minulogo chasu a zapov
Answer
LizaForever14
August 2022 | 0 Ответы
ukazhitryadoku yakomu vsi diyeprikmetniki mayut dokonanijvid a zvilnenij zo
Answer
LizaForever14
August 2022 | 0 Ответы
ukazhit rechennya v yakomu diyeprikmetnik vistupaye v roli oznachennya a nareshti vsi
Answer
LizaForever14
July 2022 | 0 Ответы
prisudok diyevidmina grupa
Answer
LizaForever14
July 2022 | 0 Ответы
nuzhno sostavit tablicu pervaya kolonka vidovoe nazvanie rasteniya vtoraya har
Answer
LizaForever14
July 2022 | 0 Ответы
tex]...
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "tex]..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Умножаем обе части уравнения(3x - 1) / 10 - (4y + 1)/5 = -3 | * 10
(2x + 1)/3 - (3y - 2)/8 = 3 | * 24
3x - 1 -2*(4y + 1) = -30
8*(2x + 1) - 3*(3y - 2) = 72
Приводим подобные слагаемые
3x - 1 - 8y - 2 = -30
16x + 8 - 9y + 6 = 72
3x - 8y = -27
16x - 9y = 58
Выражаем х через у
x = (-27 + 8y)/3
16*(-27 + 8y)/3 - 9y = 58
Решаем второе уравнение
16*(-27 + 8y)/3 - 9y = 58 | *3
16*(-27+8y) - 27y = 174
-432 + 128y - 27y = 174
101y = 174 + 432
y = 6
Находим х
x = (-27 + 8*6)/3 = (-27 + 48) / 3 = 21/3 = 7
Ответ: (7 ;6)