Title: 33 Solving Equations by Multiplying or Dividing
13-3 Solving Equations byMultiplying or Dividing
- Objective Solve equations using the
multiplication and division properties of
equality.
25-Minute Check
- Solve each equation.
- x 3 5
35-Minute Check
- Solve each equation.
- x 3 5 8
45-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
55-Minute Check
- Solve each equation.
- x 3 5
- y 9 7 -2
65-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6
75-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6 19
85-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6
- n (-1) 1
95-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6
- n (-1) 1 0
105-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6
- n (-1) 1
- f 4 -5
115-Minute Check
- Solve each equation.
- x 3 5
- y 9 7
- 13 m 6
- n (-1) 1
- f 4 -5 -9
123-3 Solving Equations by Multiplying or Dividing
133-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution.
143-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution. 8y/8
96/8 Divide each side by 8.
153-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution. 8y/8
96/8 Divide each side by 8. y 12
163-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution. 8y/8
96/8 Divide each side by 8. y 12 Check 8y
96 Replace y with 12.
173-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution. 8y/8
96/8 Divide each side by 8. y 12 Check 8y
96 Replace y with 12. 8(12) ? 96
183-3 Solving Equations by Multiplying or Dividing
Example Solve 8y 96. Check your solution. 8y/8
96/8 Divide each side by 8. y 12 Check 8y
96 Replace y with 12. 8(12) ? 96 96 96 The
solution is 12.
193-3 Solving Equations by Multiplying or Dividing
203-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your solution.
213-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your
solution. -6 y/-6 -6 12 Multiply each side
by 6
223-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your
solution. -6 y/-6 -6 12 Multiply each side
by 6 y -72
233-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your
solution. -6 y/-6 -6 12 Multiply each side
by 6 y -72 Check y/-6 12 Replace y with
-72
243-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your
solution. -6 y/-6 -6 12 Multiply each side
by 6 y -72 Check y/-6 12 Replace y with
-72 -72/-6 ? 12
253-3 Solving Equations by Multiplying or Dividing
Example 2 Solve y/-6 12. Check your
solution. -6 y/-6 -6 12 Multiply each side
by 6 y -72 Check y/-6 12 Replace y with
72. -72/-6 ? 12 12 12 The solution is
72.
263-3 Solving Equations by Multiplying or Dividing
Application Tom has a piece of rope that is 105
feet long. He wants to cut the rope into 5 equal
pieces. How long will each piece be?
273-3 Solving Equations by Multiplying or Dividing
Application Tom has a piece of rope that is 105
feet long. He wants to cut the rope into 5 equal
pieces. How long will each piece be? Let L
represent the length of each piece.
283-3 Solving Equations by Multiplying or Dividing
Application Tom has a piece of rope that is 105
feet long. He wants to cut the rope into 5 equal
pieces. How long will each piece be? Let L
represent the length of each piece. 105
5L Write an equation.
293-3 Solving Equations by Multiplying or Dividing
Application Tom has a piece of rope that is 105
feet long. He wants to cut the rope into 5 equal
pieces. How long will each piece be? Let L
represent the length of each piece. 105
5L Write an equation. 105/5 5L/5 Divide
each side by 5.
303-3 Solving Equations by Multiplying or Dividing
Application Tom has a piece of rope that is 105
feet long. He wants to cut the rope into 5 equal
pieces. How long will each piece be? Let L
represent the length of each piece. 105
5L Write an equation. 105/5 5L/5 Divide
each side by 5. 21 L The solution is 21.