Example

Try It: Solving 2x15|2x - 1| \leq 5 and 4x53|4x - 5| \leq 3

To practice solving absolute value inequalities that use a 'less than or equal to' symbol, evaluate the expressions 2x15|2x - 1| \leq 5 and 4x53|4x - 5| \leq 3. For the first inequality, 2x15|2x - 1| \leq 5, rewrite it as the equivalent compound inequality 52x15-5 \leq 2x - 1 \leq 5. Adding 11 to all parts yields 42x6-4 \leq 2x \leq 6, and dividing by 22 gives the solution 2x3-2 \leq x \leq 3. This is graphed with closed endpoints at 2-2 and 33 and shading between them, written in interval notation as [2,3][-2, 3]. For the second inequality, 4x53|4x - 5| \leq 3, form the compound inequality 34x53-3 \leq 4x - 5 \leq 3. Adding 55 across the parts produces 24x82 \leq 4x \leq 8, and dividing by 44 results in 12x2\frac{1}{2} \leq x \leq 2. Graphed with closed circles and shading in between, the interval notation for this solution is [12,2][\frac{1}{2}, 2].

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Updated 2026-05-03

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