This document contains notes from a math lesson on solving multi-step equations. It includes examples of different types of equations and their solutions. Students are assigned problems 45 from pages 93-95 for homework due on Monday. The document also mentions the possibility of extra credit on a Chapter 1 test and provides examples of solving equations with consecutive integers and consecutive even/odd integers.

1. Lesson 2­3.notebook September 06, 2013
Assignment:
1­­>L2.3, pg. 93­95, #3 ­ 45 (thirds) ­ Due Monday (9/9)
2­­>Chapter 1 test signed for extra credit??

2. Lesson 2­3.notebook September 06, 2013
Lesson 2.3 WarmUp:
Solve each equation. Show all work for full credit.
1) 18 ­ (­x) = 81
2) 447 + x = ­261
3) 6 = ­1/2n
Write an equation for each sentence. Then solve the equation.
4) six times a number is 132
5) four fifths is equal to ten sixteenths of a number

3. Lesson 2­3.notebook September 06, 2013
Lesson 2.3:
FYI­­>Some equations require more than one step to solve them...
these are called multi­step equations!
*To solve multi­step equations...
....undo the operations by working backwards!!

4. Lesson 2­3.notebook September 06, 2013
*consecutive integers ­ integers in counting order
[4, 5, 6......n, n + 1, n + 2]
*consecutive even integers ­ integers in counting order that go
by "twos" and start with an even number
[4, 6, 8......n, n + 2, n + 4]
*consecutive odd integers ­ integers in counting order that go
by "twos" and start with an odd number
[7, 9, 11... ...n, n + 2, n + 4]

5. Lesson 2­3.notebook September 06, 2013
Lesson 2.3 examples:
Solve each equation. Check your answer.
A) 2x ­ 6 = 4 check:
B) n + 1 = 15 check:
­2

6. Lesson 2­3.notebook September 06, 2013
C) 12 = ­7x ­ 9 check:
D) ­1/5 ­ 4/9x = 2/15 check:

7. Lesson 2­3.notebook September 06, 2013
E) 9 = ­6x ­ (­3) check:
­8

8. Lesson 2­3.notebook September 06, 2013
F) Find 3 consecutive integers with a sum of ­36.
G) Find 3 consecutive odd integers with a sum of ­51