1 / 15

Bell Ringer – solve each for x.

Bell Ringer – solve each for x. 1) x + 7 = 12 2) x-6 = 2 3) 4x = 20 4 ) ⅓x = 6 5) 2x -4 = 12 6) ⅙x + 2 = 4 7) 3x + 5 = 10x -9. Steps to Solving an Equation. 1) Simplify each side (expression) of equation separately. (distribute, combine like terms)

celina
Télécharger la présentation

Bell Ringer – solve each for x.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bell Ringer – solve each for x. • 1) x + 7 = 12 • 2) x-6 = 2 • 3) 4x = 20 • 4) ⅓x = 6 • 5) 2x -4 = 12 • 6) ⅙x + 2 = 4 • 7) 3x + 5 = 10x -9

  2. Steps to Solving an Equation • 1) Simplify each side (expression) of equation separately. (distribute, combine like terms) • 2) Remove fractions if desired (multiply everything on both sides by the Least Common Multiple – common denominator) • 3) Move variable term to one side (add or subtract) • 4) Eliminate constant (add or subtract) • 5) Eliminate coefficient (divide or mult. by recip.)

  3. Examples: Solve each for x • 1) 10(x-4) = 4(x+4) + 4x • 2) ½ x + ⅓x = 10

  4. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1)

  5. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side

  6. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute

  7. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side

  8. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side -15 = 3x + 6 subtracted 3x

  9. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side -15 = 3x + 6 subtracted 3x -6 -6 eliminate constant -21 = 3x

  10. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side -15 = 3x + 6 subtracted 3x -6 -6 eliminate constant -21 = 3x subtracted 6

  11. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side -15 = 3x + 6 subtracted 3x -6 -6 eliminate constant -21 = 3x subtracted 6 3 3 eliminate coefficient

  12. Think Aloud Explain out loud what to do, how and why at each step of the process. 3(x – 5) = 6 (x + 1) Simplify each side 3x -15 = 6x + 6 Distribute -3x -3x Move variables to 1 side -15 = 3x + 6 subtracted 3x -6 -6 eliminate constant -21 = 3x subtracted 6 3 3 eliminate coefficient -7 = x divided by 3

  13. Student think aloud # 1 5w + 2 = 2w + 5

  14. Student think aloud #2 -4(x + 2) = 3( x – 4)

  15. Process Analysis • A written think aloud in paragraph form. • Solve problem on top of paper. • After EACH step, write a sentence explaining WHAT you did, HOW and WHY. 12(x + 3) = 2(x + 5) – 3x

More Related