Question 258106
http://www.tpub.com/content/doe/h1014v1/css/h1014v1_151.htm
solve each equation for the same variable and then set the two equal to each other

3x+2y=7
6x-5y=8
solve first for x
and solve second for x
3x=7-2y
x=(7-2y)/3
solve second for x
6x-5y=8
6x=8+5y
x=(8+5y)/6
(8+5y)/6=(7-2y)/3