1. Warm-up: From your Workbook. p. 57 (13 – 14) AND p.58 (1 – 7) You may work out the problems in your workbook, but write the final answer on your warm-up page. You have 10 minutes to complete the problems. 13.) a. 8 years; b. $52,000 14.) a. 6 months; b. 128 stamps 1.) 28 ft 2.) 7 days 3.) 16 hrs 4.) 20 months 5.) B 6.) G 7.) C

2. Inequalities Questions?

3. What are Literal Equation? Literal equations are equations involving two or more variables. They are solved using inverse operations and properties of equality just as other algebraic equations are solved.

4. Example: One-Step Literal Equations Solve for A:Solve for Z: AX = C Y + Z = -8 Solve for H:Solve for R V = LWH C = 2  R

5. Two-Step Literal Equations: Solve for Y:Solve for L: 7X + 14Y = -21 P = 2W + 2L Solve for B:Solve for Y: 5A + 9 = 2A – 3B3X – 4Y = 10X + 14Z LecturePLUS Timberlake5

6. Post-It Check Solve for Y:Solve for W: 3X + 4Y = 12 4TW = 4Z

7. Classwork: Workbook p. 65 (1-6): Silently If you finish early, work on studying your vocabulary for tomorrow’s vocabulary quiz. The words were: Absolute Value, Consistent System, Dependent System, Inequality, Inconsistent System, Independent System, Literal Equation, Solution of an inequality in one variable, System of linear equations, System of linear inequalities

8. Assessment Check Write your name on a piece of paper. You will complete the following questions on your own. LecturePLUS Timberlake8

9. Closing & Homework: Closing: 1. Write your own literal equation and solve it. Justify your steps. 2. How is solving literal equations similar and different to how we previously solved equations involving one variable? Homework: Textbook p. 80 (15 – 27) odd; Study for your vocab quiz tomorrow!