Solve: 8x - y = -6 and xy = 9

Question

2bornot2b · Answer

$$x=9/y$$
Putting the above value of x in the first equation
$$72/y-y=-6\implies 72-y^2=-6y\implies y^2-6y-72=0$$

2bornot2b · Answer

I hope you can solve the quadratic equation....

anonymous · Answer

So I just do the quad form and then it should give me my answer for Y?

anonymous · Answer

Awesome, thanks

2bornot2b · Answer

Yes, you will get two values of y, by solving the above quadratic equation. Now put each of them on any one of your equations, and you will get two values of x. So that's the solution, two values of x and two values of y.

2bornot2b · Answer

You are welcome! 
It also must be mentioned here, that the solutions must be written in such a way such that the reader can make out from your writing which x is corresponding to which y.