A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = 2
A) x = 0
B) x = 2
C) There is no x value, as there is no solution.
D) x can be any value, as there is an infinite number of solutions.
anonymous
 one year ago
Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = 2 A) x = 0 B) x = 2 C) There is no x value, as there is no solution. D) x can be any value, as there is an infinite number of solutions.

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(2x+y=1\implies y=2x+1\) so plug that in to the second equation $$4x+2y=2\\4x+2(2x+1)=2\\4x4x+2=2\\\color{red}{2\ne2}$$oops  we derived a falsehood by assuming there was a solution, so we can conclude there is no such solution \((x,y)\) satisfying both equations

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@oldrin.bataku so A or C?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well clearly not A as that suggests there is a solution. there are no solutions
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.