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Find the ordered pair $(x,y)$ that satisfies the system of equations \begin{align*} x+y&=15,\\ x-y&=3. \end{align*}

 Jul 8, 2022
 #1
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(x,y) = (8,7)

 Jul 8, 2022
 #2
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 I am going to be blundt- this is a pretty simple question. I recommend looking at YouTube or Khan Academy videos on simulataneous linear equations if you are having trouble with this.

 

Try adding the two equations, solving for x, and plugging your x value back into one of the equations.

 

Please try and digest my process, or you won't learn anything. Happy trails!

 

smiley

 Jul 8, 2022
edited by Katashio  Jul 8, 2022
 #3
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It says its not correct

 Jul 8, 2022
 #4
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If you are OP, the first answer by that Guest was most likely a troll. I will reitirate what I said in my answer - this problem is very basic. You didn't even take the time to check if the Guest's answer was right, which means you are literally just here for a shortcut to your homework. I recommend actually attempting the problem before coming here.

 

If you are still having issues, I have posted some hints to the process of this equation in my answer (#2), hope it helps. 

Katashio  Jul 8, 2022
 #5
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Here is a youtube clip, the first example is quite similar to yours

 

https://www.youtube.com/watch?v=clY_pbtBneA

 Jul 9, 2022
 #6
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I got it. Thank you everyone!

 Jul 9, 2022
 #7
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Great,

It is always good to get feedback.  :)

Melody  Jul 10, 2022

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