Compound Inequality 9E2207
1. **State the problem:** Solve the inequality $$-45 \leq m + 27 - 9m \leq -29$$.
2. **Simplify the inequality:** Combine like terms inside the inequality.
$$m + 27 - 9m = -8m + 27$$
So the inequality becomes:
$$-45 \leq -8m + 27 \leq -29$$
3. **Isolate the variable term:** Subtract 27 from all parts of the inequality.
$$-45 - 27 \leq -8m + 27 - 27 \leq -29 - 27$$
$$-72 \leq -8m \leq -56$$
4. **Divide by -8:** Since we are dividing by a negative number, reverse the inequality signs.
$$\frac{-72}{-8} \geq m \geq \frac{-56}{-8}$$
$$9 \geq m \geq 7$$
5. **Rewrite the solution:** The solution is
$$7 \leq m \leq 9$$
This means $m$ is between 7 and 9 inclusive.
**Final answer:** $$7 \leq m \leq 9$$