Question

What is the solution to the system of equations

use the linear combination method

4x+y=5
3x+y =3

A.(-3,7)
B.(2,-3)
C.(0,-0)
D.(0,5)

Answer 1

@AloneS Can you help?

Answer 2

I can

Answer 3

really! Awesome!! Thank you

Answer 4

We can always plug in the answers as they are in (x, y) format.

Answer 5

Or I like to do this.

Answer 6

NVM

Answer 7

o.O

Answer 8

Hold on, it does not work like that, it's not simple arithmetics....

Answer 9

It's B, but I don't how to explain rather than plug in values...

Answer 10

Oh I get it.

Answer 11

4x+y=5
-3x-y =-3
Thus by subtracting literally from equations we get x=2

Answer 12

Are you sure it's B?

Answer 13

Such as 4x-3x+y-y=5-2

Answer 14

100%

Answer 15

Literally subtract the two equations.

Answer 16

Okay. I'm trusting you on this, if it's wrong, I'm going to kill you. .-. xD JK

Answer 17

Okay.

Answer 18

If I am wrong, then math is a lie......

Answer 19

I have 3 more

Answer 20

It's 0 pretty sure.

Answer 21

As you multiply 1.5 to the bottom equation and then subtract you get 0=6.5 which is not true.

Answer 22

Reward me and then I will continue, xD

Answer 23

Pfft, :P I did!

Answer 24

Anymore, I solved two, I got two left.

Answer 25

Yes, I have some gimme 1 sec

Answer 26

That is 0 also..... 0=5?, that's a joke.

Answer 27

BTW i am talking to myself.

Answer 28

You are not! I'm just doing two things at once ^-^ sorry, I'll pay attention more.

Answer 29

e=0....

Answer 30

So there is no solution?

Answer 31

Thus it is D or the last answer choice.

Answer 32

I believe so, hold on, let me check.

Answer 33

I have 1 last one. Can you help with it?

Answer 34

Sure and I was right about it being D.

Answer 35

Pretty sure, it's the intersection which I believe is (3, 0)

Answer 36

Awesome. Thanks buddy!

Answer 37

Your welcome.