A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
Please Help Me It Is Very IMPORTANT!! :)
Thank You
anonymous
 3 years ago
Please Help Me It Is Very IMPORTANT!! :) Thank You

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0When solving systems of equations, how do you determine what method to use? For the next can you please help me solve it and what all you did please

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0here is the problem 6x  4y = 54 9x + 2y = 69

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2You generally look at what method will be the easiest/fastest to do.

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2With that equation, you can see that the y coefficients are two and 4. So, it looks like a minor effort to just multiply the one equation by two, and adding them together to eliminate the yvariable

precal
 3 years ago
Best ResponseYou've already chosen the best response.0I would do elimination but Cramer's rule is one of the fastest way to solve the system

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thank You but you can please help me on the problem too

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Can you also tell what you did like step by step please and thank you :)

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2Sure. First multiply the second equation by 2: x2: 9x + 2y = 69 > 18x + 4y = 138 List the two equations and add: 6x 4y = 54 18x + 4y = 138 __________________ 12x + 0y = 84 12x = 84 x = 7 Now sub x back into any of the equations: 6(7)  4y = 54 42  4y = 54 4y =  12 y = 3 so x=7 and y = 3

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0you know how like on the second thing that you did well what goes in the middle of 6x  4y

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I can just use this and this is correct right??

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2nothing, I just spaced it so it is kinda in the same line of sight

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2yes, you can. It's correct.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0wait what proccess is this??

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0substittution??? haha i spelled it wrong lol

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.2Nope this is elimination. My pleasure
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.