ordered pairs for: x-2y=-14 2x+y=17 HELP ASAP!
isolate x in the first equation to get x-2y=-14 x=-14+2y
then plug this into the second equation 2x+y=17 2(-14+2y)+y=17 -28 + 4y + y = 17 5y - 28 = 17 ... ... ... y = ???
Hmm, I'm still pretty confused.. :/
do you see how I got what I have so far?
Yes, I do see. (: So, that's how I'll be finding the ordered pairs?
the idea from here is to solve 5y - 28 = 17 for y what do you get when you do so?
9? I'm horrible at math. So, I'm not sure if i done it right but what I did was I subtracted 28 both sides & then I divided it by 5. AGAIN, i'm not sure yet how to solve ordered pairs.............
y = 9 is correct
now that you know that y = 9, you can use this to find x x=-14+2y x=-14+2*9 .. plug in y = 9 x = -14 + 18 x = 4
Can you help me solve x? :)
so the ordered pair is (4,9)
Thank you so much!!
what this means visually is that if you graphed the two lines x-2y=-14 and 2x+y=17, they would intersect at the point (4,9)
you're welcome
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