1. Section 2.1 Writing Equations
Algebra 1

2. By the end of this lesson, you should be able to…
Translate basic sentences into algebraic equations.
Translate sentences in a context into algebraic equations.
Solve the algebraic equation after translation.

3. Example 1 A. Translate this sentence into an equation.
Translate Sentences into Equations
A. Translate this sentence into an equation.
A number b divided by three is equal to six less than c.
b divided by three is equal to six less than c.
= c – 6
Answer:

4. A. Translate this sentence into an equation
A. Translate this sentence into an equation. A number c multiplied by six is equal to two more than d.
A. 6c = d + 2
B. 2c = d + 6
C. c = d + 2
D. c = 6(d + 2)

5. Activity 1: Translating Sentences into Equations
For the activity, in your groups, sort the verbal descriptions with its algebraic equation representation
Make two columns
Record 1-2 example/s in your CORNELL NOTES.
Choose the examples to be varied so you have something solid to refer back to

6. Example 2
Translate Equations into Sentences
A. Translate the equation into a verbal sentence. 12 – 2x = –5
– x = –5
Twelve minus two times x equals negative five.
Answer: Twelve minus two times x equals negative five.

7. A. Translate the equation into a verbal sentence.
A. Twelve minus four divided by b is negative one.
B. Twelve less than four divided by b equals negative one.
C. Four minus twelve divided by b equals negative one.
D. Twelve divided by b minus four equals negative one.

8. Activity 2: Sorting Equations into Sentences
For the next activity, in your groups, sort the verbal descriptions with its algebraic representation
Make two columns
Record 1-2 examples in your CORNELL NOTES.
Choose the example/s to be varied so you have something solid to refer back to

9. Homework
Write Cornell Notes Summary
Unit 1 Review Homework Packet

10. Exit Slip Hand in Exit Slip (With Name) when finished
*Clean Air charges $52 for a service call. There is no charge for the first hour (h). After the 1st hour, Clean Air has a $30 hourly charge.
Set up an equation to represent the charge of a visit from Clean Air and define your variable(s).
How much would Clean Air charge you for a 7 hour service call?
Hand in Exit Slip (With Name) when finished
Write Cornell Notes Summary