A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out?
3x  y = 3
2x + 2y = 6
 2 years ago
To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out? 3x  y = 3 2x + 2y = 6

This Question is Closed

joshi
 2 years ago
Best ResponseYou've already chosen the best response.0well you need the same coefficient for y if you want them to cancel. in the first one the coefficient of y is 1. and in the second it's 2. so 1 x ? = 2

radar
 2 years ago
Best ResponseYou've already chosen the best response.2You would the first equation by 2, getting 6x 2y = 6. when added to second equation the y's would "add out" or their sum is 0.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2I left out the word multiply, which goes in the first sentence between " would * the"

n1995
 2 years ago
Best ResponseYou've already chosen the best response.0so what would you multiply the eqaution by?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0@hero. Don't just post the answer next time unless you absolutely need to...

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0I thought I was checking someone's answer. @Falkqwer misled me

radar
 2 years ago
Best ResponseYou've already chosen the best response.2As I have previously posted, if you want to eliminate the y's, multiply the first equation by 2. this gives you: 6x 2y = 6 Now add the 2nd equation 2x+2y =6  4x = 12 x=3

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0There can only be one right answer

Falkqwer
 2 years ago
Best ResponseYou've already chosen the best response.0@radar is right cause your supposed to Solve it using the addition method.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2Substituting for x in the 2nd equation getting 2(3) + 2y = 6 6 +2y = 6 2y= 12 y=6 x=3, y=6 To be sure check them out

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0I found my mistake. Wha ta shame

radar
 2 years ago
Best ResponseYou've already chosen the best response.2Do we need to verify? Did you get (3,6) @Hero

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0@radar, what is it about "I found my MISTAKE" did you not understand?

radar
 2 years ago
Best ResponseYou've already chosen the best response.2It never hurts to verify substituting 3 for x, 6 for y 3xy=3 or 3(3)6=3 96=3 3=3 first one checks! 2x+2y=6 2(3)+2(6)=6 6 +12 = 6 6=6 checks

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0No need to persist. Be happy that you provided the right solution and move on.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2@Hero, just wanted to verify my answer, so I was simply asking if you got the same (after your error discovery.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0When I said I found my mistake, that implies that I acknowledge your correct answer. Furthermore I gave you a medal. As I said, no need to persist beyond that.
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.