1 / 15

Solving Two-Step Equations

Solving Two-Step Equations. Teacher: Ms Randall. What is a Two-Step Equation?. An equation written in the form Ax + B = C. Examples of Two-Step Equations. 3x – 5 = 16 y/4 + 3 = 12 5n + 4 = 6 n/2 – 6 = 4. Steps for Solving Two-Step Equations.

star
Télécharger la présentation

Solving Two-Step Equations

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. Solving Two-Step Equations Teacher: Ms Randall

  2. What is a Two-Step Equation? An equation written in the form Ax + B = C

  3. Examples of Two-Step Equations • 3x – 5 = 16 • y/4 + 3 = 12 • 5n + 4 = 6 • n/2 – 6 = 4

  4. Steps for Solving Two-Step Equations • Solve for any Addition or Subtraction on the variable side of equation by “undoing” the operation from both sides of the equation. • Solve any Multiplication or Division from variable side of equation by “undoing” the operation from both sides of the equation.

  5. Addition  Subtraction Opposite Operations Multiplication  Division

  6. Helpful Hints? • Identify what operations are on the variable side. (Add, Sub, Mult, Div) • “Undo” the operation by using opposite operations. • Whatever you do to one side, you must do to the other side to keep equation balanced.

  7. Ex. 1: Solve 4x – 5 = 11 4x – 5 = 15 +5 +5 (Add 5 to both sides) 4x = 20 (Simplify) 4 4 (Divide both sides by 4) x = 5 (Simplify)

  8. Try These Examples • 2x – 5 = 17 • 3y + 7 = 25 • 5n – 2 = 38 • 12b + 4 = 28

  9. Check your answers!!! • x = 11 • y = 6 • n = 8 • b = 2

  10. Ready to Move on?

  11. Ex. 2: Solve x/3 + 4 = 9 x/3 + 4 = 9 - 4 - 4 (Subt. 4 from both sides) x/3 = 5 (Simplify) (x/3)  3 = 5  3 (Mult. by 3 on both sides) x = 15 (Simplify)

  12. Try these examples! • x/5 – 3 = 8 • c/7 + 4 = 9 • r/3 – 6 = 2 • d/9 + 4 = 5

  13. Check your answers!!! • x = 55 • c = 35 • r = 24 • d = 9

  14. Time to Review! • Make sure your equation is in the form Ax + B = C • Keep the equation balanced. • Use opposite operations to “undo” • Follow the rules: • Undo Addition or Subtaction • Undo Multiplication or Division

  15. That’s All! Good Bye

More Related