Question

solve the system of equations
x+y=7
x-y=3
the answer should be in an ordered pair

Answer 1

You would solve this by Elimination. Which means that

Answer 2

Isolate for x in the second equation:

x= 3+y.

Insert 3+y into the first equation to solve for y:

3+y + y = 7

2y=4

y=2

x=3+2y = 3+ 4 = 7.

Answer 3

Dang it :P lol

Answer 4

x+y=7 time (-1) then -x-y=-7

-x-y=-7
ADD x-y=3
-----------------
-2y = -4
y= -4/-2
y=2
subtitution y =2 slove for x
x+2=7
x= 7-2
x =5

Answer 5

x=5,y=-2

Answer 6

x=5
y=2

Answer 7

I sure it correct

Answer 8

how would you graph this?

Answer 9

yeah ur right it is corect

Answer 10

The x is the slope and the y is the y intercept (:

Answer 11

the rest of my question wants to know if this is dependent or independent and alsoconsistent or inconsistent

Answer 12

it is dependent and it is consistent

Answer 13

CRAP!! i forgot the definition.... >.<

Answer 14

can anyone graph it and send me a link so i can see how it should look?

Answer 15

sorry I wrong page

Answer 16

u have grid paper?

Answer 17

no i do it on the computer

Answer 18

u need rewrite to slope intercept than draw grap on the grid paper,

Answer 19

Yeah, there was a slight mistake in that I wrote x=3+2y instead of x=3+y.

Honestly, graphing a function like this shouldn't be any problem at all. y=x-3. Start at y(0)=-3, y(1)= -2, y(2)=-1, y(3)=0, and so on...

Isolate for y, (y=x-3), and insert whatever x you need in order to get the information you need.

Answer 20

x+y=7 , y= -x +7
x-y=3 , y = x-3

Answer 21

let me send u grap , u will see intercept at (5,2)

Answer 22

sorry y=2 on the grap I write y =3

Answer 23

Isn't it a bit more productive to show this person the way to the anser instead of spoonfeeding him?

Answer 24

Answer.

Answer 25

Answer?