1) The document provides instructions for a math lesson assignment involving solving multi-step equations. Students are asked to solve sample equations like 2x - 6 = 4 and find consecutive integers with a given sum. 2) The lesson explains that multi-step equations require undoing operations in reverse order to solve them. It also defines consecutive integers, even integers, and odd integers. 3) Students are provided examples of solving equations and checking answers, such as 12 = -7x - 9, and finding consecutive integers with a specified sum.

1. Lesson 2­3.notebook October 04, 2012
Assignment:
1­­>L2.3, pg. 93­95, #3 ­ 45 (thirds) ­ Due Monday (10/8)
2­­>Chapter 1 test signed for extra credit??
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2. Lesson 2­3.notebook October 04, 2012
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
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3. Lesson 2­3.notebook October 04, 2012
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!!
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4. Lesson 2­3.notebook October 04, 2012
*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]
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5. Lesson 2­3.notebook October 04, 2012
Lesson 2.3 examples:
Solve each equation. Check your answer.
A) 2x ­ 6 = 4 check:
B) n + 1 check:
­2
=14
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6. Lesson 2­3.notebook October 04, 2012
C) 12 = ­7x ­ 9 check:
D) ­1/5 ­ 4/9x = 2/15 check:
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7. Lesson 2­3.notebook October 04, 2012
E) 9 = ­6x ­ (­3) check:
­8
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8. Lesson 2­3.notebook October 04, 2012
F) Find 3 consecutive integers with a sum of ­36.
G) Find 3 consecutive odd integers with a sum of ­51
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