Question

Anyone will fane and medal

Solve the following system:

y = x + 3
3x + y = 19

(7, 4)
(−4, 7)
(4, 7)
(4, −7)

Answer 1

What's "fane" ?

Answer 2

@jjamz87 ? have a clue

Answer 3

its a typo **** i meant fan

Answer 4

@abb0t

Answer 5

Ok. I'll explain it as well.

Answer 6

please i really wanna understand , not just get the answer ^^ (:

Answer 7

Plug in equation 1 into equation 2
3x + (x+3) = 19
now solve for x

Answer 8

Combine like terms :)

Answer 9

oh okay so it would be 4x+3=19

Answer 10

You can rearrange, using algebra tricks, to manipulate an substitute.
That means you can rearrange equation 1: \(\sf \color{red}{y-3 = x}\)

notice it says x equals y - 3?

well, yeah, thats what it equals to, so substitute THAT thing that x equals to into equation 2: \(\sf \color{blue}{3}(\color{red}{y-3})\color{blue}{+y=19}\)

Answer 11

right subract 3 from both sides
4x=19-3

Answer 12

y = x + 3
3x + y =19
plug in the first equation into y
3x + (x + 3) = 19
simplify
3x + x + 3 = 19
4x = 16
divide 4 from both sides.
x = 4

Answer 13

4x=16

Answer 14

whats 16/4 ?

Answer 15

4

Answer 16

4

Answer 17

good therfore x=4
now plug that into the 1st equation y=4+3
whats 4+3?

Answer 18

okay so i just have to rearrange @abb0t for these questions
and plug it in to the other equation

Answer 19

thank you @jjamz87

Answer 20

@awlas15 rearraging makes it more complicated you can leave it as is...

Answer 21

*rearranging

Answer 22

ohh okay so then the answer 4,7

Answer 23

yep

Answer 24

No. Do not listen to her, rearranging is much easier.

Answer 25

It is simply plug and chug and combining like terms.

Answer 26

@awlas15 yes you are correct

Answer 27

Nice one @jjamz87

Answer 28

@abb0t quit trying to make things more harder than they need to be.

Answer 29

Good job, @awlas15

Answer 30

If you need any more answers, tag me :)

Answer 31

Y'all stop fighting I have already answered the question.

Answer 32

thanks everyone !!! how can i give you guys all medals ): and i guess harder is more better to @abb0t perspective

Answer 33

You did a fabulous job, @awlas15

Answer 34

Giving the answer is not necessarily helping. But ok. Whatever.

Answer 35

Excuse me but I explained it.

Answer 36

Sounds like someone is mad that they earned the medal and they didn't. Ouchies! Some people are better at explaining than others :)

Answer 37

LOL i dont care about medals

Answer 38

Anyways if a mod does nothing why should i? Aight have a nice day.

Answer 39

seriously guys thanks i mean its cause i asked him first but if anything ill give you a medal on any other question I'm sorry @pooja195 but seriously thank you guys and quite fighting i understood it thats the point of open study @pooja195 @jjamz87 @abb0t but AGAIN I THANK YOU I REALLY DO APPRECIATE IT LIKE SERIOUSLY THANKS

Answer 40

@awlas15 i dont care about medals

Answer 41

I know but i feel bad i wanna give you a medal as well i hate how i can not but really thank you seriously mean a lot @pooja195