Question

Choose the correct graph of the linear system. Then enter the solution of the system.
x-y=1
x+y=-5

Answer 1

Add them
x-y=1
x+y=-5
=====
2x=-4
x=-4/2
x=-2

Answer 2

How did you get the 2x?

Answer 3

OK That's how I solve for X
To solve for Y do I subtract 1 from -5 or -5 from 1 or neither?

Answer 4

Nah to solve for y put the value of x in eq no.2
x+y=-5
-2+y=-5
y=-5+2
y=-3

Answer 5

Thanks! I forgot that to solve for Y you have to solve for X first, one more question. Where did you get the 2x from? is it because you added x-y=1 and x+y=-5+
Trying to get these liner equations through my head.

Answer 6

x+x =2x

Answer 7

yes and -y +y will cancelled.

Answer 8

Thanks again!

Answer 9

yw :) someone who wants to learn.

Answer 10

@uri
Closed the question too soon! I figured out the graph (the third option) but Now I have to answer
What is the solution of the linear system?
What do I put there?

Answer 11

Put where? c:

Answer 12

In the question
"What is the solution of the linear system?"
c:

Answer 13

*cool smiley

Answer 14

@uri

Answer 15

And thank you for all your help!

Answer 16

(-2,-3)

Answer 17

OH OK!
I feel dumb :P