1. **State the problem:** Solve the compound inequality $$-4 \leq \frac{1}{2}(8x + 8) < 12$$ and find the solution set.
2. **Recall the rule:** When solving inequalities, you can multiply or divide both sides by the same positive number without changing the inequality signs.
3. **Multiply both sides of the inequality by 2 to eliminate the fraction:**
$$-4 \leq \frac{1}{2}(8x + 8) < 12$$
Multiply all parts by 2:
$$2 \times -4 \leq 2 \times \frac{1}{2}(8x + 8) < 2 \times 12$$
$$-8 \leq \cancel{2} \times \frac{1}{2}(8x + 8) < 24$$
$$-8 \leq 8x + 8 < 24$$
4. **Subtract 8 from all parts to isolate the term with x:**
$$-8 - 8 \leq 8x + 8 - 8 < 24 - 8$$
$$-16 \leq 8x < 16$$
5. **Divide all parts by 8 to solve for x:**
$$\frac{-16}{8} \leq \frac{8x}{8} < \frac{16}{8}$$
$$-2 \leq \cancel{8}x \div \cancel{8} < 2$$
$$-2 \leq x < 2$$
6. **Final solution:**
The solution set is all real numbers $$x$$ such that $$-2 \leq x < 2$$.
This means $$x$$ can be any number from $$-2$$ up to but not including $$2$$.
Compound Inequality 61E739
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