SOLUTION: This problem needs to be solved by linear combination method: {9xsqrd - 6ysqurd =291 3xsqurd + 2ysqurd =197 both of these are to be bracketed on the left. I am really struggl

Question 254953: This problem needs to be solved by linear combination method:
{9xsqrd - 6ysqurd =291
3xsqurd + 2ysqurd =197
both of these are to be bracketed on the left.
I am really struggling with this problem and am wondering if you must multiply the bottom set by 2 to make it compatible with the top set and where do I go from there? I hope you can help me soon.
Jeiel
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
Your two equations are:
(i)
(ii)
step 1 - multiply (ii) by 3 to get
(iii)
add (i) to (iii) to get
(iv)
solving for x, we get

Now, find y.

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