1. **State the problem:** Solve the compound inequality $$5 < \frac{4x - 16}{8} < 8$$ and find the range for $$x$$.
2. **Recall the rule for compound inequalities:** We can multiply or divide all parts of the inequality by the same positive number without changing the inequality signs.
3. Multiply all parts of the inequality by 8 to eliminate the denominator:
$$5 \times 8 < \frac{4x - 16}{8} \times 8 < 8 \times 8$$
$$40 < 4x - 16 < 64$$
4. Add 16 to all parts to isolate the term with $$x$$:
$$40 + 16 < 4x - 16 + 16 < 64 + 16$$
$$56 < 4x < 80$$
5. Divide all parts by 4 to solve for $$x$$:
$$\frac{56}{4} < \frac{4x}{4} < \frac{80}{4}$$
6. Show cancellation step:
$$\frac{\cancel{56}}{\cancel{4}} < x < \frac{\cancel{80}}{\cancel{4}}$$
7. Simplify:
$$14 < x < 20$$
**Final answer:** $$14 < x < 20$$
Compound Inequality 180C38
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