Question

Solution to the compound inequality –6 ≤ 2 + 6 ≤ 6

-12≤x≤0
6≤x≤6
-6≤x≤0
0≤x≤6

Answer 1

-6 < = 2x + 6 < = 6....subtract 6 from all sections
-6 - 6 < = 2x + 6 - 6 < = 6 - 6...simplify
-12 < = 2x < = 0...divide all sections by 2
-12/2 < = (2/2)x < = 0/2....simplify
-6 < = x < = 0...by the way, I cant put the line under the inequality sign to show the equal sign...so I just put the = sign with the inequality sign