Question

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

x + y = 11
-x = -y - 9

A. (10, 1)
B. (9, 2)
C. (8, 3)
D. (11, 0)

Answer 1

So if -x=-y-9 what does x= ?

Answer 2

11?

Answer 3

@nelsonjedi

Answer 4

No. You need to rewrite the -x = -y -9 as x = ?????

Answer 5

x=y+9?

Answer 6

@nelsonjedi

Answer 7

@Godlovesme could you help?

Answer 8

yes give me a sec

Answer 9

ok

Answer 10

from this x+y=11 solve for x or y

Answer 11

@Tallan u there?

Answer 12

i am one sec

Answer 13

k :) jst making sure

Answer 14

Yea sorry for the short wait I had to record something..
Ok i am confused on how to find it.

Answer 15

its fine :)
x+y=11
x=11-y got it?

Answer 16

x=11-y i got that yes.

Answer 17

plug "11-y" for x in one of the eqns and solve for y

Answer 18

0? @Godlovesme

Answer 19

can u show me how u got that?

Answer 20

you plug in x with 11 so it would be 11 +y=11 and it would be 0 to stay at 11

Answer 21

did i do it right?

Answer 22

plug x=11-y in the the -x=-y-9 equation @Tallan

Answer 23

so it would be -x=-11-9?

Answer 24

yes then
-(11-y)=-y-9
can u try solving from there?

Answer 25

It would be 1? y=1

Answer 26

yep plug 1 for x in any of the eqns and solve for x

Answer 27

i mean plug for y and solve for x :/

Answer 28

so y=1 so plug 1 in for y?

Answer 29

yes sorry for the confusion =0

Answer 30

remember x=11-y :)

Answer 31

10 ?

Answer 32

awesome!!!

Answer 33

nice job :)

Answer 34

A would be the answer

Answer 35

yep

Answer 36

thanks for the medal :)

Answer 37

np! thanks for the help!!