Question

Solve the following system of equations. Please show your work to receive full credit.
x - y = 16
2x + y = 2

Part 2:
Explain which method you chose to solve the system and why you felt it was the best choice

Answer 1

you can add as follows:

x - y = 16
2x +y = 2
==========

Answer 2

do you now how to add the equation?

Answer 3

Unfortunally I do not.

Answer 4

ok this is how

x -y = 16
2x +y = 2
==========
3x = 18

Answer 5

now divide by 3 and you have

3x 18
--- = ----
3 3

Answer 6

so what is x equal to ?

Answer 7

x = 6

Answer 8

good, now to find the value of y just substitute the 6 for x on the equation as follows:

x - y = 16
6 - y = 16 can you solve for y

Answer 9

I don't think so. The way I look at it it be negative if i get a total of it :/

Answer 10

Oh wait it be -10 then?

Answer 11

correct, so now you solved the system of equation (6,-10)

Answer 12

Question

Answer 13

you solved it by addition

Answer 14

x -y = 16
2x +y = 2
==========
3x = 18 <----- for this one how did u get 3x

Answer 15

I never understood that one

Answer 16

ok
x + 2x = 3x
-y +y = 0 (left it blank)
16 + 2 = 18

Answer 17

so x would be 1?

Answer 18

right x = 1x

Answer 19

now that make sense. ty

Answer 20

yw :)

Answer 21

umm for step 2

Answer 22

How can i explain it ?

Answer 23

you used the addition method

Answer 24

Oh i see

Answer 25

Addition method seems alot easy to do didnt feel it needed so much work to slove it.

Answer 26

since you were able to cancel out the y right away

Answer 27

Well thank you so much ^^ I got it now

Answer 28

no problem, anytime