This document provides instruction on solving two-step equations from word problems. It begins with examples of solving basic two-step equations. Next, it presents word problems that can be modeled with two-step equations, such as choosing the better rental car deal based on price per day and initial fee. Students are guided through setting up and solving the equations. The document concludes with assigning a two-step equation homework problem and notifying of an upcoming assignment due date.

1. Day 13 Two­Step Equations.notebook January 14, 2013
AIM: Writing Two-Step
Equations from Word Problems
Do Now
Solve the following equations.
2 -1 -2 x = 4
a.) x + = b.)
5 2 3 5
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2. Day 13 Two­Step Equations.notebook January 14, 2013
Math-A-Thon
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3. Day 13 Two­Step Equations.notebook January 14, 2013
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4. Day 13 Two­Step Equations.notebook January 14, 2013
Anticipatory Set
I have $100 dollars to spend on renting a car for my
vacation. Please help me choose the better deal out of the
following two situations.
Situation 1: At Big John‛s Car Situation 2: At Crazy Carl‛s Car Rental
Rental you can rent a car for 3 you can rent a car for 4 dollars a day
dollars a day and an initial and an initial payment of $20.
payment of $25.
LET x = __________________________________________________
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5. Day 13 Two­Step Equations.notebook January 14, 2013
Anticipatory Set
Based on the Brain Pop video:
1.) Why are two-step equations called two-step equations?
2.) What does it mean for a number to be “just hanging out there”?
3.) Based on the procedure from the video, solve the following equation.
5x + 10 = 50
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6. Day 13 Two­Step Equations.notebook January 14, 2013
Anticipatory Set
I have $100 dollars to spend on renting a car for my
vacation. Please help me choose the better deal out of the
following two situations.
Situation 1: At Big John‛s Car Situation 2: At Crazy Carl‛s Car Rental
Rental you can rent a car for 3 you can rent a car for 4 dollars a day
dollars a day and an initial and an initial payment of $20.
payment of $25.
LET x = __________________________________________________
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7. Day 13 Two­Step Equations.notebook January 14, 2013
Situation 1: At Big John‛s Car Situation 2: At Crazy Carl‛s Car Rental
Rental you can rent a car for 3 you can rent a car for 4 dollars a day
dollars a day and an initial and an initial payment of $20.
payment of $25.
LET x = ____Number of Days_____________
Situation 1 Situation 2
1.) Which situation is a better deal for me? Why?
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8. Day 13 Two­Step Equations.notebook January 14, 2013
12 less than 15 times x is 18
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9. Day 13 Two­Step Equations.notebook January 14, 2013
1.) Jamie rented a canoe while she was on vacation. She paid a flat
rental fee of $85.00 plus $7.50 each day. Her total cost was
$130.00. Write an equation to find for how many days she rented
the canoe?
LET x =___________________
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10. Day 13 Two­Step Equations.notebook January 14, 2013
2.) A taxi service charges an initial of $3.00 plus
$1.50 for every mile traveled. If a taxi ride
costs $21.00, how many miles did the taxi travel?
LET x =___________________
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11. Day 13 Two­Step Equations.notebook January 14, 2013
Activity
Grade: «grade»
Subject: «subject»
Date: «date»
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12. Day 13 Two­Step Equations.notebook January 14, 2013
SMART Response Activity
1.) 7x - 8 = -36 CHECK
2.) CHECK
3.) -8j - 7 = 1 CHECK
4.) CHECK
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13. Day 13 Two­Step Equations.notebook January 14, 2013
1 1.) 7x - 8 = -36 CHECK
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14. Day 13 Two­Step Equations.notebook January 14, 2013
2
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15. Day 13 Two­Step Equations.notebook January 14, 2013
3
3.) -8j - 7 = 1 CHECK
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16. Day 13 Two­Step Equations.notebook January 14, 2013
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17. Day 13 Two­Step Equations.notebook January 14, 2013
Before You Leave
Create a two-step equation that would
have an answer of x = 4.
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18. Day 13 Two­Step Equations.notebook January 14, 2013
Homework
Castle Assignment #4 due Wednesday
1/16/13
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