Question

Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the numbers or symbols.

2x+7y=4
-4x-3y=14

how would i go about this? please help!!

Answer 1

4x+17y=8
-4x-3y=14
--> 14y=22

Answer 2

how would i put that into an ordered pair?? @PFEH.1999

Answer 3

what?

Answer 4

Well ok 14y=22 you can solver for y

Answer 5

it wants me to express the answer as an ordered pair. @PFEH.1999

Answer 6

can you tell me what y is in 14y=22

Answer 7

1.57? @RyanL.

Answer 8

yes :)

Answer 9

yes you are correct now we know y=1.57
Now we need to know what x=?

Answer 10

To do this we must plug in what y is into either the first or the second equation.

Answer 11

then solve for x

Answer 12

2x+7y=4

y=1.57

so that means

2x+7(1.57)=4

Now can you solver for x?

Answer 13

first step is multiplying out 7 and 1.57 ....see if you can do the rest.

Answer 14

@RyanL. , I think she can do it herself :D

Answer 15

If you want to check your work just post the answer you get here and we can tell if you got it right or wrong.

Answer 16

sorry i stepped away for a little while @RyanL. haha i wish i could do this myself! Math is my kryptonite though :( hold on one moment please!

Answer 17

I got x=-3.495 @RyanL. is that anywhere near right?

Answer 18

yes that's right

x=-3.50
y=1.57

Where your order pair is (x,y)

just replace the y and x with the numbers you found

Answer 19

so (-3.50,1.57)? @RyanL.

Answer 20

is that the answer?

Answer 21

yeah that should be

Answer 22

i got it wrong.. its -5,2 :(

Answer 23

4x+17y=8
-4x-3y=14

should have been

4x+14y=8
-4x-3y=14

11y=22

and y = 2

Answer 24

so the question is incorrect?

Answer 25

yeah @PFEH.1999

Answer 26

@PFEH.1999 you made a mistake it was suppose to be 14y not 17y

Answer 27

yes :( sorry :)

Answer 28

and x = -5