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need help solve this equation using the elimination method 6x – 4y = 54
–9x + 2y = –69
 one year ago
 one year ago
need help solve this equation using the elimination method 6x – 4y = 54 –9x + 2y = –69
 one year ago
 one year ago

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ajprincessBest ResponseYou've already chosen the best response.2
Multiply the second equation by 2 nd can u plz tell me vat u get?
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
yup 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
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
i cannt can u do it
 one year ago

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

yayasims21Best ResponseYou've already chosen the best response.0
ok so im suppose to add 18+4y=138 to 6x4y=54
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
i cant do it my calculator wont let me
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
18x+4y+6x4y=138+54 (18x+6x)+(4y4y)=138+54 See if u can do it nw:)
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
Add the ones inside the parentheses
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
i cant do it i really suck at math
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
12x. what is 4y4y?
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
yup right:) what is 138+54
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
yup good. nw combine these results.
 one year ago

TheViperBest ResponseYou've already chosen the best response.0
@ajprincess happy new year & to @yayasims21 too :)
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
o thanks happy new year to u 2
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
no. 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:)
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
12 divided by 12 is 1 and 84 is 7
 one year ago

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

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

yayasims21Best ResponseYou've already chosen the best response.0
ok wat do u mean how am i suppose to do tht
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
x=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.
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
i cant do this im so confused
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
424y=54 1.Subtract 42 both sides. 2.Divide by 4 both sides to find y.
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
Plz follow the steps
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
i am but so im suppose to subtract 42from 9
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
no. 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
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
4y=12 Divide by 4 both sides (4y)/4=12/4 y=3
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
ok i got it is there anymore we have to do
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
nope. evrythng is done:)
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
ok well can u show this all at once so i can write it down
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
can you @ajprincess
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
Extremely sorrry @yayasims21. busy right nw.
 one year ago

yayasims21Best ResponseYou've already chosen the best response.0
o alright illtry to put it together
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
hav u finished @yayasims21?
 one year ago

ajprincessBest 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)=> \(6(7)4y=54\) \(424y=54\) \(4y=5442\) \(4y=12\) \(4y/4=12/4\) \(y=3\)
 one year ago
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