Solve the compound inequality

MATHEMATICS · Single correct · GCSE · Mathematics · Algebra · Algebra

Problem

Solve the compound inequality −12<−3(2x+1)≤6-12< -3(2x+1) \le 6. Which of the following describes all real numbers xx that satisfy it? (a) −1.5<x≤1.5-1.5 < x \le 1.5 (b) x>1.5x>1.5 (c) −1.5<x<1.5-1.5 < x < 1.5 (d) −1.5≤x<1.5-1.5 \le x < 1.5

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