Which number is NOT in the solution set of x − 9 > 3? A) 11 B) 13 C) 15 D) 17
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Given the inequality set:
x -9 > 3
Determine which number is not a solution.
Solution:
Before we can determine which number is not a solution, we must solve first for the inequality of x. Transpose -9 on the other side of the equation, note that when transposng a number, the sign changes.
x - 9 > 3
x > 3 + 9
x > 11
X must be greater than 11, therefore based on the choices, we cannot have the number 11.
Final answer:
A. 11