The numbers x and y are not integers. The value of x is closest to which integer?
(1) 4 is the integer that is closest to x + y
(2) 1 is the integer that is closest to x - y
for statement 1: you could have x= 1.5 , y=2.6 or x = -1.5, y = 5.6
for statement 2: you could have x= 1.5 , y= .6 or x = -1.5, y = -2.6
Together still insuff
you could have something like x = 1.4 or x =1.6, and the results will differ depend on rounding up or down.