A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
What is a possible first step to eliminate the variable x in the following system?
2x – 7y = 3
4x + 5y = –2
anonymous
 3 years ago
What is a possible first step to eliminate the variable x in the following system? 2x – 7y = 3 4x + 5y = –2

This Question is Closed

Directrix
 3 years ago
Best ResponseYou've already chosen the best response.0Multiply each member of this equation by (2) and post the result here. Equation: 2x – 7y = 3

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Top one by 2 :) 4x + 14y = 6 4x + 5y = 2 19y = 8 and you can work it from there :)

Directrix
 3 years ago
Best ResponseYou've already chosen the best response.0@ryan.g.campbell.17 > This question was for the Asker and not for your deus ex machina. Read the Code of Conduct. @raebaby420 Yes. The objective in the Addition/Subtraction method of solving simultanteous linear equations is to multiply by a number that will cause the coefficient of the variable you wish to eliminate to add out.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Ok.. so i think i understand it

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Soo i just gotta single out my coefficient?

Directrix
 3 years ago
Best ResponseYou've already chosen the best response.0@raebaby420 Let's try another one. Same instructions. Answer? 3x + 4y = 7 3x  4y = 10

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0umm haha i have no clue.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0whats the first step i have to complete?

Directrix
 3 years ago
Best ResponseYou've already chosen the best response.0Question: What added to 3x gives 0? (3x) + ? = 0 ? =
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.