<PRE><B>Question 62406</B>
SOLVING SYSTEMS OF LINEAR EQUATIONS BY SUBSTITUTION. 
Instruction: 
Solve each system by the substitution method. First clear all fractions. Check each solution. 
(1/4X)-(1/5Y)= 9.........1....PUT Y=5X IN THIS 
(1/4X)-(1/25X)=9...MULTIPLY WITH 100X THROUGH OUT
25-4=900X
900X=21
X=21/900=7/300
Y=5X=5*7/300=7/60
CHECK....
(1*300/4*7)-(1*60/5*7)=(1/7)[75-12]=63/7=9.OK 
This is the questions? 
Thank you so much for helping me!!!!!!
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