Question

if x=2a+1and y=a-1 then find the value of a

Answer 1

The answer is given below :

Given,

x = 2a + 1 .....(i)

and

y = a - 1 .....(ii)

From (i) and (ii), on subtraction, we get

x - y = a + 2

=> a = x - y - 2

So, the value of a is (x - y - 2).

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