Question

30. The value of y2-5 for y=-5 is​

Answer 1

Answer:

∣y∣=x−1

since ∣y∣ is always positive

x−1 will always be a positive number

That means x is always greater than equal to 1

so now the equations become

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

x−y=1...(2)

solving (1) and (2) we get,

x=2 and y=1

⇒x+y=2+1=3