For any two integers X and Y, |x+y| =|x| + |y|

Question

For any two integers X and Y, |x+y| =|x| + |y|

Answer 1

False

|-5 + 3| = |-5| + |3|

|-2| = |-5| + |3|

2 = 5 + 3

2 = 8

QED by contradiction