Question

x - y = 9
x + 2y = -6
Choose one answer.
a. (5,4)
b. (4,-5)
c. (4,5)
d. (-5,-4)

Answer 1

x - y = 9
x + 2y = -6
subtract the two equations simulataneously
-3y = 15
y = -5
now solve for x

Answer 2

solve these two equations!

subtract the whole of the first equation from the second! the 'x' gets eliminated, and you can find out 'y' then. And use this value of 'y' to get 'x'!

Answer 3

Subtract the two equations what you got??

Answer 4

ohk hold on

Answer 5

Sure, take your time..

Answer 6

-3y=-15?

Answer 7

-3y=15

Answer 8

-3y = 15 is right. now solve for y

Answer 9

you do that by dividing both sides by the coefficient of y

Answer 10

Hi abb50..
She is a good girl..
She will calculate on her own..
Do not need to tell her...

Answer 11

i didn't tell her anything

Answer 12

Dividing both sides by......................etc etc..

Answer 13

it was just a hint. is that not allowed?

Answer 14

Let her do on her own..
if not then you surely can give hints...

Answer 15

okay sorry

Answer 16

lol what? abb50 you have nothing to apologize for.

Answer 17

I do not want to hear sorry from you abb50..
Even I am sorry if I talked rude to you...

Answer 18

thnx both of u guys i got the y but i got 14 for the x which im sure is wrong

Answer 19

@abb50 u were helping nd thnx i got -5 anyway even without u giving it to me lol i didnt even realized u gave me the answer thats how dumb i am!

Answer 20

nd thanx @waterineyes for all ur help!!! i am learning a lot from u!!!

Answer 21

No need to say thanks...
See, from first equation:

x - y = 9

So here,
x = 9 + y

put y:

x = 9 + (-5)

Now solve for x...

Answer 22

ohk hold on

Answer 23

4!

Answer 24

so the answer is b?

Answer 25

That's the one with x=4 and y=-5 ;)

Answer 26

yes!

Answer 27

thnx all of u!!