anonymous
  • anonymous
Anyone will fane and medal Solve the following system: y = x + 3 3x + y = 19 (7, 4) (−4, 7) (4, 7) (4, −7)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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abb0t
  • abb0t
What's "fane" ?
anonymous
  • anonymous
@jjamz87 ? have a clue
anonymous
  • anonymous
its a typo **** i meant fan

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More answers

anonymous
  • anonymous
@abb0t
jjamz87
  • jjamz87
Ok. I'll explain it as well.
anonymous
  • anonymous
please i really wanna understand , not just get the answer ^^ (:
pooja195
  • pooja195
Plug in equation 1 into equation 2 3x + (x+3) = 19 now solve for x
pooja195
  • pooja195
Combine like terms :)
anonymous
  • anonymous
oh okay so it would be 4x+3=19
abb0t
  • abb0t
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: \(\sf \color{blue}{3}(\color{red}{y-3})\color{blue}{+y=19}\)
pooja195
  • pooja195
right subract 3 from both sides 4x=19-3
jjamz87
  • jjamz87
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
anonymous
  • anonymous
4x=16
pooja195
  • pooja195
whats 16/4 ?
abb0t
  • abb0t
4
anonymous
  • anonymous
4
pooja195
  • pooja195
good therfore x=4 now plug that into the 1st equation y=4+3 whats 4+3?
anonymous
  • anonymous
okay so i just have to rearrange @abb0t for these questions and plug it in to the other equation
anonymous
  • anonymous
thank you @jjamz87
pooja195
  • pooja195
@awlas15 rearraging makes it more complicated you can leave it as is...
pooja195
  • pooja195
*rearranging
anonymous
  • anonymous
ohh okay so then the answer 4,7
pooja195
  • pooja195
yep
abb0t
  • abb0t
No. Do not listen to her, rearranging is much easier.
abb0t
  • abb0t
It is simply plug and chug and combining like terms.
jjamz87
  • jjamz87
@awlas15 yes you are correct
abb0t
  • abb0t
Nice one @jjamz87
pooja195
  • pooja195
@abb0t quit trying to make things more harder than they need to be.
abb0t
  • abb0t
Good job, @awlas15
abb0t
  • abb0t
If you need any more answers, tag me :)
jjamz87
  • jjamz87
Y'all stop fighting I have already answered the question.
anonymous
  • anonymous
thanks everyone !!! how can i give you guys all medals ): and i guess harder is more better to @abb0t perspective
abb0t
  • abb0t
You did a fabulous job, @awlas15
pooja195
  • pooja195
Giving the answer is not necessarily helping. But ok. Whatever.
jjamz87
  • jjamz87
Excuse me but I explained it.
abb0t
  • abb0t
Sounds like someone is mad that they earned the medal and they didn't. Ouchies! Some people are better at explaining than others :)
pooja195
  • pooja195
LOL i dont care about medals
pooja195
  • pooja195
Anyways if a mod does nothing why should i? Aight have a nice day.
anonymous
  • anonymous
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
pooja195
  • pooja195
@awlas15 i dont care about medals
anonymous
  • anonymous
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

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