Download presentation

Presentation is loading. Please wait.

Published bySara Frary Modified over 3 years ago

2
Solving Equations: a strategy

3
The mathematics behind solving equations is basic. The hardest part: What do I do first?…

4
THE GREAT SOLVING EQUATIONS PLAN!!! The following plan will allow you to solve any equation you come across in five easy steps…

5
Step 1: Eliminate any denominators using the LCD technique.

6
Step 2: Eliminate any brackets using the Distributive Law. Brackets lock terms together……that’s bad!

7
Step 3: Collect like terms on each side of the equation. Remember the sign in front of the term stays with the term.

8
Step 4: Isolate the variable. Eliminate the smaller variable if they are on both sides.

9
Step 5: Solve the 2 step equation. Add/sub first, then mult/divide.

10
Solve the following equations: 1. 4x = 20 44 1 1 x = 5

11
2. 7 + 3y = 34 33 1 1 y = 9 -7 3y = 27 Check this answer

12
Check 7 + 3(9) = 34 ? 7 + 27 = 34 34 = 34 YES!!!

13
3. 3z + 4 = 8z - 21 -5 1 1 -5z = - 25 -8z -5z + 4 = -21 -4 z = 5 Check this answer

14
Check 3(5) + 4 = 8(5) – 21 ? 15 + 4 = 40 – 21 ? 19 = 19 YES!!!

15
4. 2(x + 3) = 10 22 1 1 x = 2 -6 2x = 4 2x + 6 = 10 Check this answer

16
Check 2(2 + 3) = 10 ? 2(5) = 10 10 = 10 YES!!!

17
5. 3 + 4(x – 2) = 6x + 7 – 1x 1 1 -1x = 12 -5x -1x – 5 = +7 4x - 5 = 5x + 7 3 + 4x – 8 = 6x + 7 – 1x +5 x = - 12

18
6. 4 3 d=12 4 3 d = 12 X 3 3 X 1 1 4d = 36 4 4 1 1 d = 9

19
Homework Re-attempt various problems.

Similar presentations

Presentation is loading. Please wait....

OK

3.3 Solving Equations Using Addition or Subtraction.

3.3 Solving Equations Using Addition or Subtraction.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on natural disaster in hindi language Ppt on spiritual leadership institute Ppt on primary data collection methods Ppt on service oriented architectures Ppt on index numbers line Ppt on elections in india download Convert pdf to ppt online free download Ppt on total parenteral nutrition nursing Ppt on materialized view in oracle Ppt on pf and esic