In a pair of linear equation x+y=9 and x-y=1, the value of x and y are?
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Answered by
3
Answer:X+Y=9 ....(1)
X-Y=1 ....(2)
Y=9-X ... From (1)
Substituting the value of the Y in equation (2)
X-(9-X)=1
X-9+X=1
2X=10
X=5
Substituting the value of X in equation (1)
5+Y=9
Y=4
Therefore the value of the Y is 4 and the value of the X is 5.
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Answered by
5
x+y=9
x=9-y.
x-y=1
9-y-y=1
9-2y=1
-2y=1-9
-2y=-8
y=-2/-8
y=4..
x+y=9
x+4=9
x=9-4
x=5..
hope it's helpful to you...
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