<PRE><B>Question 1122737</B>
(500x+100y=325)
 (400x+150y=304)
Simplify each equation so we can use elimination
divide the 2nd equation by 40 and the 1st equation by 50
10x + 3.75y = 7.6
10x + 2.0y =  6.5
-------------------subtraction eliminates x, find y
0 + 1.75y = 1.1
y = 1.1/1.75
y = .62857
Use the first equation to find x
500x = 100(.62857) = 325
500x = 325 - 62.857
500x = 262.143
x = 262.143/500
x = .52429
:
:
See if this checks out in the 2nd equation
400(.52429) + 150(.62857) = 
209.7144 + 94.2855 = 303.9999 ~ 304 </PRE>