Upcoming SlideShare
×

5-12 Solving Multiplication and Division Equations

• 536 views

• Comment goes here.
Are you sure you want to
Be the first to comment
Be the first to like this

Total Views
536
On Slideshare
0
From Embeds
0
Number of Embeds
0

Shares
11
0
Likes
0

No embeds

Report content

No notes for slide

Transcript

• 1. 5-12 Solving Multiplication & Dividing Equations Math Notes Algebra and Functions 1.1
• 2. Skills Needed...
• 3. Skills Needed... Tell what you would do to get the variable alone.
• 4. Skills Needed... Tell what you would do to get the variable alone. x ÷ 20
• 5. Skills Needed... Tell what you would do to get the variable alone. x ÷ 20 Multiply by 20
• 6. Properties of Equality
• 7. Properties of Equality You can multiply the same number to both sides of an equation.
• 8. Properties of Equality You can multiply the same number to both sides of an equation. You can divide the same number from both sides of an equation.
• 9. Example 1 2 x 4= 8
• 10. Example 1 2x4 =8
• 11. Example 1 2 x 4 ÷ 4 = 8÷ 4
• 12. Example 1 2 x 4 ÷ 4 = 8÷ 4 2 = 2
• 13. Example 2 30 ÷ 6 = 5
• 14. Example 2 30 ÷ 6 =5
• 15. Example 2 30 ÷ 6 x 6= 5 x 6
• 16. Example 2 30 ÷ 6 x 6= 5 x 6 30 = 30
• 17. Example 3 Solve p x 5 = 25
• 18. Example 3 Solve p x 5 = 25 STEP ONE: What can you do to get the variable alone?
• 19. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone?
• 20. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone? STEP TWO: Use the Property of Equality and divide by 5 on both sides.
• 21. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone? STEP TWO: Use the Property of Equality and divide by 5 p x 5 ÷ 5 = 25 ÷ 5 on both sides.
• 22. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone? STEP TWO: Use the Property of Equality and divide by 5 p x 5 ÷ 5 = 25 ÷ 5 on both sides. STEP THREE: x 5 ÷ 5 cancel out. What is 25 ÷ 5?
• 23. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone? STEP TWO: Use the Property of Equality and divide by 5 p x 5 ÷ 5 = 25 ÷ 5 on both sides. STEP THREE: x 5 ÷ 5 cancel out. What is 25 ÷ 5?
• 24. Example 3 Solve p x 5 = 25 STEP ONE: What can you do Divide by 5 to get the variable alone? STEP TWO: Use the Property of Equality and divide by 5 p x 5 ÷ 5 = 25 ÷ 5 on both sides. STEP THREE: x 5 ÷ 5 cancel out. p = 5 What is 25 ÷ 5?
• 25. Example 4 Solve n ÷ 4 = 7
• 26. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do to get the variable alone?
• 27. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone?
• 28. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone? STEP TWO: Use the Property of Equality and multiply by 4 on both sides.
• 29. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone? STEP TWO: Use the Property of Equality and multiply by 4 on both sides. n÷4x4=7x4
• 30. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone? STEP TWO: Use the Property of Equality and multiply by 4 on both sides. n÷4x4=7x4 STEP THREE: ÷ 4 x 4 cancel out. What is 7 x 4?
• 31. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone? STEP TWO: Use the Property of Equality and multiply by 4 on both sides. n÷4x4=7x4 STEP THREE: ÷ 4 x 4 cancel out. What is 7 x 4?
• 32. Example 4 Solve n ÷ 4 = 7 STEP ONE: What can you do Multiply by 4 to get the variable alone? STEP TWO: Use the Property of Equality and multiply by 4 on both sides. n÷4x4=7x4 STEP THREE: ÷ 4 x 4 cancel out. n = 28 What is 7 x 4?