Absolute Inequality 3492Ff
1. **State the problem:** Solve the inequality $|2x + 1| \geq 5$.
2. **Recall the definition of absolute value inequality:** For $|A| \geq B$ where $B \geq 0$, the solution is $A \leq -B$ or $A \geq B$.
3. **Apply the rule:** Here, $A = 2x + 1$ and $B = 5$.
4. **Set up two inequalities:**
- $2x + 1 \leq -5$
- $2x + 1 \geq 5$
5. **Solve the first inequality:**
- Subtract 1: $2x \leq -6$
- Divide by 2: $x \leq -3$
6. **Solve the second inequality:**
- Subtract 1: $2x \geq 4$
- Divide by 2: $x \geq 2$
7. **Write the solution:**
- $x \leq -3$ or $x \geq 2$
This means the values of $x$ are all numbers less than or equal to $-3$ or greater than or equal to $2$.
**Final answer:** $x \leq -3$ or $x \geq 2$