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5-Minute Check 1

A B C D. Solve x – 3 = –6. Check your solution. x = -3. Solve y + 9 = 7. Check your solution. y = -2. Solve –13 = x – 9. Check your solution. x = -4. 5-Minute Check 1. Splash Screen. You have already solved equations using addition and subtraction. (Lesson 4–3).

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5-Minute Check 1

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  1. A B C D Solve x – 3 = –6. Check your solution. x = -3 Solve y + 9 = 7. Check your solution. y = -2 Solve –13 = x – 9. Check your solution. x = -4 5-Minute Check 1

  2. Splash Screen

  3. You have already solved equations using addition and subtraction. (Lesson 4–3) • Solve equations by using the Division Property of Equality. • Solve equations by using the Multiplication Property of Equality. Then/Now

  4. D.P.E Concept A

  5. Solve 7w =161. Solve Equations by Dividing Step 1: Write the equation. Step 2+3: Line through =; D.P.E. Step 4: Do the math Step 5: Give solution Answer: The solution is 23. Example 1

  6. Solve 7x =–56. Check your solution and graph it on a number line. Solve Equations by Dividing Step 1: Write the equation. Step 2+3: Line through =; D.P.E. Step 4: Do the math. Step 5: Give solution Example 2

  7. To check your solution, replace x with –8 in the original equation. Check Write the equation. ? Replace x with –8. The sentence is true. Solve Equations by Dividing Answer: The solution is –8. Example 2

  8. A B C D Solve 12p = 120. A. –132 B. –10 C. 10 D. 132 Example 1

  9. A B C D Solve 4x = –12. Check your solution. A. –48 B. –3 C. 3 D. 48 Example 2

  10. HOBBIES Esteban spent $112 on boxes of baseball cards. He paid $14 per box. Write and solve an equation to find how many boxes of cards Esteban bought. . Solve an Equation by Dividing Example 3

  11. Solve an Equation by Dividing Step 1: Write the equation. Step 2+3: Line through =; D.P.E. Step 4: Do the math Step 5: Give solution Example 3

  12. To check your solution, replace b with 8 in the original equation. ? 14(8) = 112 Replace b with 8. Solve an Equation by Dividing Check 14b = 112 Write the equation. 112 = 112 The sentence is true. Answer: Therefore, Esteban bought 8 boxes of cards. Example 3

  13. A B C D DOUGHNUTS Eliza spent $27 on doughnuts. She paid $3 per dozen. Write and solve an equation to find how many dozens of doughnuts Eliza bought. A. 3d = 27, 9 dozen B. 27d = 3, 9 dozen C. 9d = 27, 3 dozen D. 27d = 9, 3 dozen Example 3

  14. M.P.E. Concept B

  15. Solve . Check your solution. Step 1: Write the equation. Step 2+3: Line through =; M.P.E. Step 5: Give solution Solve Equations by Multiplying 1y = 60 Step 4: Do the math Example 4

  16. ? Write the equation. The sentence is true. Solve Equations by Multiplying Check Replace y with 60. Answer: The solution is 60. Example 4

  17. A B C D Solve Check your solution. A.–36 B.–5 C. D.36 Example 4

  18. Step 1: Write the equation. Step 5: Give solution Solve Equations by Multiplying by the Reciprocal Step 2+3: Line through =; Use the Reciprocal 1x = 12 Step 4: Do the math Example 5

  19. Write the equation. ? Replace x with 12. The sentence is true. Solve Equations by Multiplying by the Reciprocal Check  Answer: The solution is 12. Example 5

  20. A B C D A. –18 B. –8 C. 8 D. 18 Example 5

  21. End of the Lesson

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