What is the value of y?

 

What is the value of y?
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2 Answers

2x+y=10........(1)
x- y= 5..........(2)

3x=15
x=5
subsituting x=5 in eq (2)
5-y=5
-y=5-5=0
y=0
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" a+y=x what is the value of n"     can you assist ?
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