Question

If the replacement set is the set of integers,
find the solution set for the inequality:
x-9 <- 15

{-8,-7,-6, ... }

B {-9,-8,-7, ... }

C { ... , -8, -7,-6}

{ ... ,-9,-8, -7}

A

Answer 1

x - 9 < -15
Add 9: x < -6.

With integer replacements, x can be any integer less than -6, i.e. {..., -9, -8, -7}.

(That is the choice showing {..., -9, -8, -7}.)