Home
О нас
Products
Services
Регистрация
Войти
Поиск
mashenka204
@mashenka204
April 2021
1
16
Report
Помогите пж очень нужно
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
BlackVortex
Verified answer
1.
y=20+x
2x-15y=-1
2x-15(20+x)=-1
x=-23
2(-23)-15y=1
y=-3
(x,y)=(-23,-3)
-3-(-23)=20
2*(-23)-15*(-3)=-1
20=20
-1=-1
2.
x=4y+25
3x-2y=30
3(4y+25)-2y=30
y=-9/2
3x-2*(-9/2)=30
x=7
(x,y)=(7,-9/2)
25-7=4*(-9/2)
3*7-2*(-9/2)=30
18=18
30=30
2 votes
Thanks 1
mashenka204
Спасибоо огромное
×
Report "Помогите пж очень нужно..."
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 © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
1.y=20+x
2x-15y=-1
2x-15(20+x)=-1
x=-23
2(-23)-15y=1
y=-3
(x,y)=(-23,-3)
-3-(-23)=20
2*(-23)-15*(-3)=-1
20=20
-1=-1
2.
x=4y+25
3x-2y=30
3(4y+25)-2y=30
y=-9/2
3x-2*(-9/2)=30
x=7
(x,y)=(7,-9/2)
25-7=4*(-9/2)
3*7-2*(-9/2)=30
18=18
30=30