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Question 509787:  x - y = 2 
x + y = 6 
 Answer by Maths68(1474)      (Show Source): 
You can  put this solution on YOUR website! By Elimination Method 
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x - y = 2 ...........(1) 
x + y = 6............(2) 
Add (1) and (2)
 
x - y = 2 
x + y = 6 
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2x=8 
2x/2=8/2 
x=4 
Put the value of x in (2) 
x + y = 6 ...........(2) 
4+y=6 
y=6-4 
y=2
 
(x,y) = (4,2) 
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Check 
Put the value of x and y in (1) 
x - y = 2 ...........(1) 
4-2=2 
2=2
 
 
 
 
Put the value of x and y in (2) 
x + y = 6............(2) 
4+2=6 
6=6
 
 
 
 
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