Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
hann()
Group Title
What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = 1
A 7
B 7
C 9
D 9
 2 years ago
 2 years ago
hann() Group Title
What is the value of the y variable in the solution to the following system of equations? 5x + 4y = 1 4x + 3y = 1 A 7 B 7 C 9 D 9
 2 years ago
 2 years ago

This Question is Open

hann() Group TitleBest ResponseYou've already chosen the best response.0
I don't know how to do it that's why I need the answers
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.0
Please read this: It will be better for you: http://openstudy.com/codeofconduct
 2 years ago

hbaldon Group TitleBest ResponseYou've already chosen the best response.0
I won't give you answer but I can give you hints on how to solve this.
 2 years ago

muhammad9t5 Group TitleBest ResponseYou've already chosen the best response.0
5x + 4y = 1..................................1 4x + 3y = 1.......................2 From equation 1 5x=14y x=14y/5 now put into 2nd equ then get value of y . After getting value of y then put into 1st equ to get value of x.
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.2
Example: 5x+y=31 [1] x2y=7 [2] rearrange [1] to make y the subject. y = 31  5x rearrange [2] to make y the subject. 2y = 7  x 2y = 7 + x y = (7 + x)/2 Now equate your two expressions for y. 31  5x = (7+x)/2 2(31  5x) = 7 + x 62  10x = 7 + x 55 = 11x therefore x = 5 Now sub in x = 5 into [1] or [2] (doesn't matter) [2] > (5)2y = 7 2y = 12 2y = 12 y = 6 So there you have it... x = 5, y = 6. Now follow my approach on your problem
 2 years ago

morgenta Group TitleBest ResponseYou've already chosen the best response.0
Another approach could be the following: If you multiply the 1st equation by 4 and the second equation by 5, you'll get two equations that both have 20x in them. You can isolate 20X on both and then combine to get a single equation with only Y as the unknown (which is what you're solving for)
 2 years ago

85295james Group TitleBest ResponseYou've already chosen the best response.0
do you need help
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.