If x=a,y=b is the solution of the
equation x-y=2 and x+y=4 then
the value of a and b arce respectively
3 and 5,5 and 3,3 and 1,-1 and -3
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I don't know the answer of this question
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If x = a & y = b, then the equation x - y = 2 changes to a - b = 2 and the equation x + y = 4 changes to a + b = 4.
Add the two equations
(a - b) + (a + b) = 2 + 4
2a = 6
a = 3
Put this value of a on any of the two equations, you will get b = 1
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