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# Solving equations with multiplication and division web

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### Solving equations with multiplication and division web

1. 1.     Your friend’s mountain bike cost \$245 more than his skateboard. His mountain bike cost \$290. How much did your friend’s skateboard cost? Write an equation and solve Log into your chrome book Go to: ◦ http://lcmath7.blogspot.com/  Click on your hour and post your thoughts…
2. 2.  Adding and Subtracting Integers  Properties of addition  Multiplying and Dividing Integers  Solving one-step equations with addition and subtracting
3. 3.  Discuss… ◦ What is the goal when solving equations? ◦ What are the steps to solve this problem? ◦ What allows me to do those steps?  Properties?  Concepts?
4. 4.  Students will learn to… ◦ Solve one-step equations with multiplication and division.
5. 5.  Integer Operations Assessment ◦ Thursday ◦ Friday
6. 6.  Inverse operation  Isolate the variable  Multiplication Property of Equality ◦ If you multiply each side of an equation by the same number, the two sides remain equal.  Division Property of Equality ◦ If you divide each side of an equation by the same nonzero number, the two sides remain equal.
7. 7.  4x = 32 Goal: Isolate the variable Question: How can I get the variable by itself? Think… What is the inverse operation of multiplication or Think… What is the opposite of multiplying by 4?
8. 8.  4x = 32 4 4 x=8 Goal: Isolate the variable Question: How can I get the variable by itself? Think… What is the inverse operation of multiplication or Think… What is the opposite of multiplying by 4?
9. 9.  10x = 150 How did you get your answer? Describe what you were thinking... What was difficult about that concept?
10. 10.  10x = 150 10 10 x = 15 How did you get your answer? Describe what you were thinking... What was difficult about that concept?
11. 11. Goal: Isolate the variable  Question: How can get the variable by itself? How did you get your answer? Describe what you were thinking... What was difficult about that concept?
12. 12. Goal: Isolate the variable  Question: How can get the variable by itself? How did you get your answer? Describe what you were thinking... What was difficult about that concept?
13. 13. Goal: Isolate the variable Multiply both sides by 3  How did you get your answer? Describe what you were thinking... What was difficult about that concept?
14. 14.  Can you solve one-step equations w/ multiplication and division????
15. 15.  pg. 356 #3-6, 24, 26 Solve one-step equations w/ multiplication and division.
16. 16.  http://lcmath7.blogspot.com/  Click on exit ticket
17. 17.  A number multiplied by three is 27.  A number divided by eight is two.  A number tripled and increased by ten is 22.
18. 18.      Adding and subtracting Integers Multiplying and dividing Integers Properties of Addition Properties of Multiplication Solving one-step equations
19. 19.  Students will learn to… ◦ Solve 2-step equations.
20. 20.  Discuss… ◦ What operations are involved in this problem? ◦ How many terms? ◦ In order of operations, what do we do first? Solve 2 step equations.
21. 21. Without guess and check, what steps are used to solve this equation? Goal: Isolate the variable Question: How can I get the variable by itself? How is this process related to the order of operations? x=4
22. 22.  Order of Operations – backwards ◦ 1) Combine like terms ◦ 2) Undo addition or subtraction ◦ 3) Undo multiplication or division  Like terms: 3x + 5 + 5 = 22
23. 23.  Simplify by combining like terms ◦ 5x + 12 + (-9) = 8 ◦ 5x + 3 = 8  Undo addition or subtraction ◦ 5x + 3 = 8 ◦ - 3 = -3 ◦ 5x = 5  Undo multiplication or division ◦ 5x = 5 ◦ 5 5 ◦ x=1
24. 24.  Simplify by combining like terms ◦ 2x + x + 10 = 25 ◦ 3x + 10 = 25  Undo addition or subtraction ◦ 3x + 10 = 25 ◦ - 10 = -10 ◦ 3x = 15  Undo multiplication or division ◦ 3x = 15 ◦ 3 3 ◦ x=5
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