What is the answer to 9x-2y=-3 minus 3x+5y=27 as a coordinate point? Plz respondn w/ question answer and a how to guide a.s.a.p!!

Been stuck on this question for like an hour!

Guest Jul 7, 2017

#1**+1 **

9x-2y = -3, - 3x+5y=27

Note that if we multiply the second equation by 3, we have

-9x + 15y = 81

So now we have

9x - 2y = -3

- 9x + 15y = 81 add these and we have

13y = 78 divide both sides by 13

y = 6

And to find x we can use

9x - 2(6) = -3

9x - 12 = -3 add 12 to both sides

9x = 9 divide both sides by 9

x = 1

So....the answer is (x,y) = (1, 6 )

CPhill
Jul 7, 2017