# Chapter 2 - Section 2.1 - Introduction to Integers - Exercise Set: 75

$0\gt -9$

#### Work Step by Step

If $a-b \lt 0$, then $a \lt b;$ If $a-b \gt 0$, then $a \gt b;$ If $a-b = 0$, then $a=b;$ In this problem, $a=0, b=-9,$ Since $a-b=0-(-9)=0+9=9\gt0,$ Then $a\gt b,$ Therefore, $0\gt -9$

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