The document provides instruction on solving two-step equations. It begins with an overview of the process for solving two-step equations by first undoing addition or subtraction, and then undoing multiplication or division. Examples are then shown of solving various two-step equations, such as 15x + 3 = 48 and 5 - x = 17. An example word problem is also presented where a student is trying to save $900 and the equation 180 + 45w = 900 is used to determine how many weeks it will take.

1. 7.1 two step equations
January 10, 2014
Solve each equation
1. 9 + k = 17
2. y ­ 5 = ­4
Bellwork
Objective: using properties to solve two step equations
Feb 20­1:06 PM
HW pg. 346 #6­26 evens
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2. 7.1 two step equations
January 10, 2014
To solve a two­step equation, first undo addition or
subtraction. Then undo multiplication or division.
I think ­ opposite of Pemdas.
Solve 3n ­ 6 = 15.
Feb 20­1:23 PM
HW pg. 346 #6­26 evens
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3. 7.1 two step equations
January 10, 2014
Solve each equation.
15x + 3 = 48
t ­ 10 = ­6
4
Feb 20­1:25 PM
HW pg. 346 #6­26 evens
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4. 7.1 two step equations
January 10, 2014
Solve.
5 ­ x = 17
­9 ­ y = ­12
Feb 20­1:26 PM
HW pg. 346 #6­26 evens
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5. 7.1 two step equations
January 10, 2014
Lynne wants to save $900 to go to Puerto Rico.
She save $45 each week and now has $180.
To find how many more weeks w it will take to have $900,
solve 180 + 45w = 900.
Feb 20­1:27 PM
HW pg. 346 #6­26 evens
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6. 7.1 two step equations
January 10, 2014
HW pg. 346 #6­26 evens
Feb 20­1:53 PM
HW pg. 346 #6­26 evens
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