x^2+y^2=20

2y-x=0

simultaneous equations- started but doing something wrong.

please help

Results 1 to 3 of 3

- November 17th 2007, 06:26 AM #1

- Joined
- Oct 2007
- Posts
- 37

- November 17th 2007, 06:29 AM #2
From the second equation

Substitute that into the first equation, then solve for after that you'll get the values for

--

A related problem has been posted not long ago, let me find it and I'll edit my post. (Here is it. It's the same procedure.)

- November 17th 2007, 06:31 AM #3