Last edited by oli212; Mar 2nd 2008 at 03:25 PM.
Follow Math Help Forum on Facebook and Google+
Originally Posted by oli212 Hi, i have two equations which need to be solved for X and Y.
2X + 1.5Y = 300
X + 1.5Y = 210
Not too sure how i should go about this. Subtract the second equation from the first giving:
X = 90.
Substitute in 90 for X giving: 90 + 1.5Y = 210
1.5Y = 120
Y = 80.
X = 90, Y = 80
View Tag Cloud