If |x+3|=|y+3|, what is the value of x+y?
1) xy<0
2) x>3 and y<3
=> 1) xy < 0
We can assume x > 0 and y < 0 without loss of generality.
Then we have x + 3 = -y - 3
x + y = -6
This is sufficient.
2) x > 3 and y < 3
Then we have x + 3 = -y - 3
x + y = -6
This is sufficient.
Ans: D
1) xy<0
2) x>3 and y<3
=> 1) xy < 0
We can assume x > 0 and y < 0 without loss of generality.
Then we have x + 3 = -y - 3
x + y = -6
This is sufficient.
2) x > 3 and y < 3
Then we have x + 3 = -y - 3
x + y = -6
This is sufficient.
Ans: D
