Let's break down the image to solve each of the exercises step by step. The image contains two main sections: one for simplifying expressions (1–8) and one for solving equations (9–18).

Exercises 1–8: Simplify the Expressions

1. $|-9|$ $= 9$

2. $-|15|$ $= -15$

3. $|14| - |-14|$ $= 14 - 14 = 0$

4. $-| -3| + |3|$ $= -3 + 3 = 0$

5. $-|-5| - (-7)$ $= -5 + 7 = 2$

6. $-0.8 + |0|$ $= -0.8 + 0 = -0.8$

7. $\frac{27}{-3}$ $= -9$

8. $\frac{-12}{4}$ $= -3$

Exercises 9–22: Solve the Equation

9. $|r| = 2$ $r = 2 \quad \text{or} \quad r = -2$

10. $|x| = 13.4$ $x = 13.4 \quad \text{or} \quad x = -13.4$

11. $|m + 3| = 10$ $m + 3 = 10 \quad \text{or} \quad m + 3 = -10$ Solving both: $m = 7 \quad \text{or} \quad m = -13$

12. $|q - 8| = 14$ $q - 8 = 14 \quad \text{or} \quad q - 8 = -14$ Solving both: $q = 22 \quad \text{or} \quad q = -6$

13. $\frac{|x|}{2} = 6$ $|x| = 12 \quad \text{so} \quad x = 12 \quad \text{or} \quad x = -12$

14. $|3.5q| = 15.4$ $3.5q = 15.4 \quad \text{or} \quad 3.5q = -15.4$ Solving both: $q = 4.4 \quad \text{or} \quad q = -4.4$

15. $|4b - 5| = 11$ $4b - 5 = 11 \quad \text{or} \quad 4b - 5 = -11$ Solving both: $4b = 16 \quad \text{so} \quad b = 4 \quad \text{or} \quad b = -\frac{3}{2}$

16. $|8m + 1| = 5$ $8m + 1 = 5 \quad \text{or} \quad 8m + 1 = -5$ Solving both: $m = \frac{1}{2} \quad \text{or} \quad m = -\frac{3}{4}$

17. $-8w + 6 = 76$ Solving for $w$: $-8w = 70 \quad \text{so} \quad w = -\frac{35}{4} = -8.75$

18. $\left| \frac{3y - 2}{7} \right| = 3$ Solving both cases: $\frac{3y - 2}{7} = 3 \quad \text{or} \quad \frac{3y - 2}{7} = -3$ Solving both: $3y - 2 = 21 \quad \text{so} \quad y = \frac{23}{3}$ $3y - 2 = -21 \quad \text{so} \quad y = -\frac{19}{3}$

Would you like to review any of the solutions in more detail, or have further questions on any steps?

5 Related Questions:

1. How do you solve more complex absolute value equations?
2. What happens if there are two variables inside the absolute value expression?
3. How can you check your solution in an absolute value problem?
4. How does division affect solving absolute value equations like in question 13?
5. Can you have no solution in an absolute value equation?

Tip:

Always consider both the positive and negative cases when solving absolute value equations, as each absolute value can result in two possible solutions.