Question

Part 1:
Solve the following system of equations. Please show your work to receive full credit.
x - y = 19
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

@hba

Answer 2

Which method do you prefer ?

Answer 3

which one is easier

Answer 4

If i would be in your place i would be using elimination.

Answer 5

ok then elimination

Answer 6

So we have two equation in this question :)

x - y = 19---(1)
2x + y = 2---(2)

1)Multiply equation (1) by 2 :)

Answer 7

x - y = 38

Answer 8

2(x-y)=2(19)

Answer 9

what i did was wrong? or you want me to do that ^

Answer 10

2(x - y) = 38

Answer 11

Yes we have to multiply 2 by both sides.

Answer 12

So,

2x-2y=38---(3)

Now subtract it from Eq(2)

=)2x + y = 2
2x - 2y=38
- + -
--------------

Answer 13

i subtract 2 - 38??

Answer 14

Yes both the sides.

Answer 15

If you are not getting it let us use the substitution method.

Answer 16

You can write in the second part:I don't know elimination.

Answer 17

LOL nooo i think the answer is x = 7, y = - 12 IF I GET IT RIGHT THEN I DO lol

Answer 18

Yeah right.

Answer 19

im right??

Answer 20

Yes.

Answer 21

ok can you put everything i did together so i put it in part 1

Answer 22

I cannot do the whole solution for you.

Answer 23

Btw,If you have done it on your own,You may know the solution ??

Answer 24

i just told u the solution lol can you just write the steps??

Answer 25

No.

Answer 26

Stop playing gaby.

Answer 27

whyyyyyyyyyyyy its my last question -.- pleaseeeeeee

Answer 28

please

Answer 29

please

Answer 30

please

Answer 31

Ahm,Ahm....Ahm

Answer 32

last question and i dont bother u no more lol please tell me the steps... i already have the solution but i need to show my work

Answer 33

So do as I say...

I cannot do all the working.

Sorry :/

Answer 34

oh my LORDDDDDDD just check this: is this good for part 1?x-y=19
2x+y=2
---------
3x=21 (Add the two equations term by term.)
x=7 (divide by 3)

Now, solve for y using substitution.
x-y=19
7-y=19
-y=12 (Subtract 7 from both sides.)
y=-12

Answer 35

Where did you get
3x=21

from ?

Answer 36

The rest is fine :)

Answer 37

what do i do to fix the steps?

Answer 38

@hba DONT LEAVE MEEEE lol

Answer 39

I am out of cookies :/

Answer 40

Part 1:

x-y=19
2x+y=2
____________
x=7

x-y=19
7-y=19
-y=12
y=-12
Part 2: I chose Elimination because I feel like its easier.

Answer 41

C is for cookie and cookie is for me.

Answer 42

Is that a good answer? ^^^

Answer 43

Lemme see.

Answer 44

Show this before x=7


3x=21

Answer 45

WHAT DIDNT U SAY .. -.- ok lol

Answer 46

kay.

Answer 47

Do i get a cookie for this ?