1 / 3

Algebra Recap

Algebra Recap. 15x – 6 = 12x + 24 15x – 12x = 24 + 6 3x = 30 x = 10. 3x + 2x = 32 – 7 5x = 25 x = 25/5 x = 5. 3x – 5x = -13 – 1 -2x = -14 2x = 14 x = 7 . Solve the following equations ( i ) 3x + 7 = 32 - 2x (ii) 3x + 1 = 5x – 13 (iii) 3(5x – 2) = 4(3x + 6)

dirk
Download Presentation

Algebra Recap

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. Algebra Recap 15x – 6 = 12x + 24 15x – 12x = 24 + 6 3x = 30 x = 10 3x + 2x = 32 – 7 5x = 25 x = 25/5 x = 5 3x – 5x = -13 – 1 -2x = -14 2x = 14 x = 7 Solve the following equations (i) 3x + 7 = 32 - 2x (ii) 3x + 1 = 5x – 13 (iii) 3(5x – 2) = 4(3x + 6) (iv) 3(2x + 1) = 2x + 11 (v) 2(x + 2) – 3(x – 3) = x + 7 2x + 4 - 3x + 9 = x + 7 2x – 3x – x = 7 – 4 – 9 -2x = -6 x = 3 6x + 3 = 2x + 11 6x – 2x = 11 – 3 4x = 8 x = 2

  2. Algebraic Fractions 4(5x + 14) = 4(11) 4 5x + 14 = 44 5x = 44 - 14 5x = 30 x = 6 2(4x + 12) = 2(8) 2 4x + 12 = 16 4x = 4 x = 1 8(7x - 5) = 8(9) 8 7x - 5 = 72 7x = 77 x = 11 4x + 12 = 8 5x +14 = 11 7x – 5 = 9 2 4 8 5x + 4 - 3x – 5= 5 2x – 3 + 1 = 3x - 2 4 3 4 2 5 20(2x - 3) + 20(1) = 20(3x - 2) 4 2 5 5(2x – 3) + 10(1) = 4(3x – 2) 10x – 15 + 10 = 12x – 8 10x -5 = 12x – 8 10x – 12x = -8 + 5 -2x = -3 x = ⅔ 12(5x - 4) - 12(3x – 5) = 12(5) 4 3 3(5x - 4) - 4(3x – 5) = 60 15x - 12 - 12x + 20 = 60 3x + 8 = 60 3x = 52 x = 17⅓

  3. Quadratics x² + 10x + 9 x² - 15x + 26 x² - 8x – 33 2x² + 15x + 7 3x² + 8x + 4 2x² - 7x - 15

More Related