1. Solve –3j = 44.7. Check your answer. –3j = 44.7 Notice j is being multiplied by –3. j = –14.9Simplify. Check –3j = 44.7 Check your solution in the original equation. 44.7 = 44.7The solution checks. –3(–14.9) 44.7Replace j with –14.9. COURSE 2 LESSON 2-4 Divide each side by –3 to get j alone. 44.7 –3 –3j –3 = 2-4 Solving Equations by Multiplying or Dividing

2. The Art Club must buy 84 pieces of poster board. There are 6 pieces of poster board in a package. How many packages of poster board must the Art Club buy? 6 p = 84 The Art Club must buy 14 packages of poster board. COURSE 2 LESSON 2-4 Words 6 pieces times number of equals number of pieces packages Art Club must buy Let p = number of packages to buy Equation 6 p = 84 p = 14Simplify. Divide each side by 6. 84 6 6 p 6 = 2-4 Solving Equations by Multiplying or Dividing

3. (continued) Look Back and Check The Art Club needs 84 pieces of poster board. Each package contains 6 pieces. If the Art Club buys 14 packages, they will have 6 14, or 84, pieces. The answer checks. COURSE 2 LESSON 2-4 2-4 Solving Equations by Multiplying or Dividing

4. Solve = 27. m = –81Simplify. COURSE 2 LESSON 2-4 m –3 = 27 Notice that m is divided by –3. m –3 (–3) = (–3) 27 Multiply each side by –3. m –3 2-4 Solving Equations by Multiplying or Dividing

5. Solve each equation. 1.15x = 602. = 8 3.–35 = –7b4. = – 13 x = 4 b = 5 COURSE 2 LESSON 2-4 y = 96 n = 65 y 12 n –5 2-4 Solving Equations by Multiplying or Dividing