Question 91567:  solve each of the following systems by substitution:
 
5x-2y=-5 
y-5x=3 
 Answer by uma(370)      (Show Source): 
You can  put this solution on YOUR website! 5x-2y=-5----------(1) 
y-5x=3 
==> y = 5x+3 [adding 5x to both the sides]
 
substituting this value in (1), we get,
 
5x - 2(3+5x)= -5 
==> 5x - 6 - 10x = -5 
==> -5x = -5+6
 
==> -5x = 1 
==> x = 1/-5
 
==> x = -1/5 
So y = 5x+3 
     = 5(-1/5)+3 
     = -1+3 
     = 2
 
Thus x = -1/5 and y = 2
 
Good Luck 
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