Mod 4 lesson 26

Module 4 Lesson 26 OneStep Equations―Addition and Subtraction.notebook
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Nov 172:28 PM
Problem Set Lesson 25 Answers

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MODULE 4 Expressions and Equations
Topic G: Solving Equations
Lesson 26: One‐Step Equations―Addition and
Subtraction
Student Outcomes
§ Students solve one‐step equations by relating an equation to a diagram.
§ Students check to determine if their solution makes the equation true.

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Let's see how to use tape diagrams to calculate solutions to one‐step equations.
a + 2 = 8

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Classwork
Exercise 1
Solve each equation.  Use both tape diagrams and algebraic methods for each
problem.  Use substitution to check your answers.
a.    b + 9 = 15

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b. 12 = 8 + c

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d 5 = 7
a. Demonstrate how to solve the equation using tape diagrams.
b. Demonstrate how to solve the equation algebraically.
c. Check your answer.
Exercise 2
Given the equation

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Example 3
Solve each problem and show your work. You may choose which method (tape
diagrams or algebraically) you prefer. Check your answers after solving each problem.
a. e + 12 = 20

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Apr 2212:54 PM
b. f 10 = 15

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c. g 8 = 9

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Closing
Please take out your exit ticket for Lesson 26, close your
binder, and complete the exit ticket. This will be collected.

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Mod 4 lesson 26

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Mod 4 lesson 26