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I have tried to work it out myself and this is what I got. -5x+y(-7x-13)=17 So I going with x=-35/7 which gave me -5 so that is my x but I can get my y= yet. I tried and gt 22/20 thats not right?????
Your process seemed right, but I got x to be -5/2
Also realize there is no y once you substitute it into that one equation, I think you just had a typo though.
but -5/2 is 2.5
the 22/20 is what I got
For y I got 9/2. Now you can check these numbers if you plug them into one of the equations and both sides are equal.
So can you help me with it again
Yes. So it looks like you tried to solve the first equation for y to get y=-7x-13 Then it looked like you plugged it into the 2nd equation and should have gotten -5x+(-7x-13)=17
All you need to do next is solve for x, plug it back into one of the equations and solve for y.
so when I do that then I get 13y+17/7y+5 and the whole problem is negative with a neg.sign front understand
I don't quite see what you are doing...-5x-7x-13=17 then -12x=30 then x=-5/2 so plug -5/2 into either of the equations to get y. So for example, -5(-5/2)+y=17 then (25/2)+y=17 and y=9/2
ok so what is the order pair
can you please give me the order pair to this question
(x,y) so (-5/2,9/2) which is the same as (-2.5,4.5)
so that is the order pair?
Yes. If you plug in both the x and y into either of those equations you should get the left side equal to the right.
thanks again, is there a program that helps you work these out and learn them
so I need to put (-2.5,4.5) in or (-5/2, 9/2) in
when I put in the first one it said incorrect!!!
The answers are correct based on the equations you gave me. I promise.
sorry the top one is suppose to be 4y sorry so 7x+4y=-13 and -5x+y=17 I am so sorry I could not figure out what I was doing wrong
Lol no problem, but that does change things :P
http://www.webmath.com/solver2.html here is something I found that does solve systems of equations, well at least 2 of them. I looked over their work, and it seems like it can be confusing. I would recommend trying to do them on your own solving for x or y like we did, and maybe using that website to check steps if you made a mistake. There's probably something better out there somewhere.
So can I get the order pair for this then please and I can move on to the next.....please...
x=-3 y=2 so (-3,2)
i have to continue working on ths because I am still a little confused but trying to understand. Thanks for the help again....I have more to come....