Example

Solving and Graphing 35x71\frac{3}{5}x - 7 \le -1 or 13(x+6)2\frac{1}{3}(x + 6) \ge -2

To solve the compound inequality 35x71\frac{3}{5}x - 7 \le -1 or 13(x+6)2\frac{1}{3}(x + 6) \ge -2, start by solving each inequality independently. For the first inequality, add 77 to both sides to get 35x6\frac{3}{5}x \le 6, then multiply by 53\frac{5}{3} to find x10x \le 10. For the second inequality, multiply by 33 to obtain x+66x + 6 \ge -6, then subtract 66 to get x12x \ge -12. The solution to an "or" compound inequality is the union of these two results: x10x \le 10 or x12x \ge -12. Since these regions overlap and cover every possible value on the number line, the final solution includes all real numbers. In interval notation, this is written as (,)(-\infty, \infty).

0

1

Updated 2026-04-22

Contributors are:

Who are from:

Tags

OpenStax

Intermediate Algebra @ OpenStax

Ch.2 Solving Linear Equations - Intermediate Algebra @ OpenStax

Algebra