1 / 17

Do Now

Do Now. On my website under “Math Activities” Arcademic - “Swimming Otters” under Algebra- to practice solving algebraic equations ONLY USE YOUR FIRST NAME as the player name Which weighs more a pound of iron or a pound of feathers? THEY ARE THE SAME

wyoming-bean
Download Presentation

Do Now

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. Do Now • On my website under “Math Activities” • Arcademic- “Swimming Otters” under Algebra- to practice solving algebraic equations • ONLY USE YOUR FIRST NAME as the player name • Which weighs more a pound of iron or a pound of feathers? THEY ARE THE SAME • How is the moon like a dollar? THEY BOTH HAVE 4 QUARTERS 3. What is alive and has only 1 foot? A LEG

  2. 1/3/2014 6-1 E Solve & Write Subtraction Equations

  3. The Goal of Solving Equations… to get the variable by itself on one side of the equation

  4. X - 3 2 = Solvex – 3 = 2 Think of this equation as a balance scale. Whatever you do to one side has to be done to the other to keep it balanced!

  5. Ex. 1 Solve x – 3 = 2 x – 3 = 2 Write the equation! + 3 = + 3 Add 3 from x + 0 = 5 each side to “undo” the subtraction of x = 53 on the left side.

  6. Then Check! x – 3 = 2 5 - 3 = 2 2 = 2 

  7. Ex. 2 The difference between the number of people that visit Great Adventure on a Saturday and the number of people that visit the park on a Wednesday is 1,465. Saturday is the busiest day of the week. There are 4,320 visitors on Wednesday. How many visitors are there on Saturday? Write and solve an equation.

  8. x – 4,320 = 1,465 Write the equation. + 4,320 = + 4,320 Subtract 120 from each side. x = 5,785 Simplify. There were 5,785 visitors to Great Adventure on Saturday. Check 5,785 – 4,320 = 1,465 

  9. Ex. 3 5.14 = j – 3.2 5.14 = j – 3.2 Write the equation! + 3.2 = + 3.2 Add 3.2 from 8.34 = j each side to “undo” the subtraction of j = 8.343.2 on the right side.

  10. Then Check! 5.14 = j – 3.2 5.14 = 8.34 – 3.2 5.14 = 5.15 

  11. Ex. 4

  12. Ex. 5

  13. Ex. 6: Solve 10 = y - 4 10 = y – 4 Write the equation! + 4 = + 4 Add 4 from each side to “undo” the subtraction of 4 on the right side. 14 = y

  14. Then Check! 10 = 14 - 4 10 = 14 – 4 10 = 10 

  15. Practice Time! Your Turn!

  16. Solve and • x - 5 = 9 • b – 4.4 = 1.6 • 4 = y - 8 • 3 = n – 2

  17. Homework • Pg. 330 #1-24 Evens • Test Corrections due January 10th • Study Quiz Tuesday!

More Related