A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
What is the value of the x variable in the solution to the following system of equations?
3x + y = 1
6x + 2y = −9
0
2
There is no x value as there is no solution to this system
x can be any value as there are infinitely many solutions to this system
anonymous
 3 years ago
What is the value of the x variable in the solution to the following system of equations? 3x + y = 1 6x + 2y = −9 0 2 There is no x value as there is no solution to this system x can be any value as there are infinitely many solutions to this system

This Question is Closed

BAdhi
 3 years ago
Best ResponseYou've already chosen the best response.0There is no solution (if you consider the graphs of these lines they will never intersect since they are parallel)

phi
 3 years ago
Best ResponseYou've already chosen the best response.1notice that if you divide the 2nd equation by 2 (both sides of the = sign, all terms) you get 3x + y = 9/2 your 2 equations are now 3x + y = 1 3x + y = 9/2 a "solution" is an (x,y) pair that works in both equations. Say we find an (x,y) pair that "works" for the 1st equation. (in other words 3x+y will be 1) then in the 2nd equation, we know 3x+y is 1, and we get 1= 9/2 which is not true. This tells us there is no solution, no (x,y) pair that works for both equations.

phi
 3 years ago
Best ResponseYou've already chosen the best response.1Or using BAdhi's idea change both equations to slopeintercept form 3x + y = 1 > y = 3x+1 6x + 2y = −9 > y = 3x 9/2 these lines have the same slope, but different y intercepts. They are parallel lines and never intersect. that means there is no (x,y) pair that sits on both lines. (which is what would happen if the lines intersected). So, no solution

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok thank you for the help
Ask your own question
Sign UpFind more explanations on OpenStudy
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.