Quote Originally Posted by Sandman53 View Post
Elimation only works is you can get either same X or same Y. So for example

Y = 2X + 5
Y = 3X - 5
--------------------

(First you need to make the X's equal... the common numerator is 6 hence)

3Y = 6X + 15
2Y = 6X - 10
------------------------

(Now to elimante X we need to make either the top or bottom negative)

3Y = 6X + 15
-2Y = -6X + 10
-------------------------
Y = 25
(The math is simple, just add)

So knowing that (Y = 25) we plug why back in to either Equation

25 = 3X + 15
10 = 3X
X = 3/10

Simple...
Hardly. If anything, i un-learned.