A community for students.
Here's the question you clicked on:
 0 viewing
yayasims21
 3 years ago
need help solve this equation using the elimination method 6x – 4y = 54
–9x + 2y = –69
yayasims21
 3 years ago
need help solve this equation using the elimination method 6x – 4y = 54 –9x + 2y = –69

This Question is Open

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2Multiply the second equation by 2 nd can u plz tell me vat u get?

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2yup good:) nw add this one with the first equation. terms with variable y will be elimnated. then solve for x. can u do it @yayasims21

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2plz give it a try. if u face any difficulty when doing it plz ask. I will help u:)

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0ok so im suppose to add 18+4y=138 to 6x4y=54

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0i cant do it my calculator wont let me

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.218x+4y+6x4y=138+54 (18x+6x)+(4y4y)=138+54 See if u can do it nw:)

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2Add the ones inside the parentheses

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0i cant do it i really suck at math

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.212x. what is 4y4y?

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2yup right:) what is 138+54

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2yup good. nw combine these results.

TheViper
 3 years ago
Best ResponseYou've already chosen the best response.0@ajprincess happy new year & to @yayasims21 too :)

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0o thanks happy new year to u 2

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2no. remember u can add 12x with 84. nd 84 is in the right side of the equal aign. 18x+6x+4y4y=138+54 12x+0=84 12x=84 Divide by 12 both sides to find x. Thanx @TheViper and I wish u the same:)

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.012 divided by 12 is 1 and 84 is 7

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2remember u r dividing 12x by 12 nt 12. this leaves u with x and u r right abt getting 7:)

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2So ur x becomes 7. To find y plug in this value in either 6x – 4y = 54 or –9x + 2y = –69 and solve

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0ok wat do u mean how am i suppose to do tht

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2x=7. Plug this in 6x4y=54 6(7)4y=54 424y=54 1.Subtract 42 both sides. 2.Divide by 4 both sides to find y.

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0i cant do this im so confused

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2424y=54 1.Subtract 42 both sides. 2.Divide by 4 both sides to find y.

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2Plz follow the steps

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0i am but so im suppose to subtract 42from 9

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2no. let me do one step and show. 424y=54 Subtract 42 both sides 42424y=5442 04y=12 4y=12 Nw divide by 4 both sides to find y

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.24y=12 Divide by 4 both sides (4y)/4=12/4 y=3

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0ok i got it is there anymore we have to do

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2nope. evrythng is done:)

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0ok well can u show this all at once so i can write it down

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2Extremely sorrry @yayasims21. busy right nw.

yayasims21
 3 years ago
Best ResponseYou've already chosen the best response.0o alright illtry to put it together

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2hav u finished @yayasims21?

ajprincess
 3 years ago
Best ResponseYou've already chosen the best response.2\(6x4y=54(1)\) \(9x+2y=69(2)\) (2)*2=>\(18x+4y=138(3)\) (3)+(1)=>\(18x+4y+6x4y=138+54\) \(12x=84\) \(12x/12=84/12\) \(x=7\) Substituting this in (1)=> \(6(7)4y=54\) \(424y=54\) \(4y=5442\) \(4y=12\) \(4y/4=12/4\) \(y=3\)
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.