Lesson 3.1: Solving Linear Equations Part I

Lesson 3.1

Solving Linear Equations (Part I)

Routines/Expectations

Have pencils and notebook ready

Webcam must be on and remain on through the entire class period.

Focus and pay attention

Ask questions if you’re confused

Open your google worksheet lesson 3.1 solving linear equations part I

Complete the Do Now (3 minutes)

Do Now

Consider the equation: 2x + 5 = 11

1. What two operations are represented in this equation?
2. How would you "undo" each of those operations?
3. Which operation would you "undo" first? Explain why. 
4. In your own words, describe how you would use inverse operations to solve the equation.

Lesson's objectivs

• I can use combining like terms concept and skills to simplify expressions.

• I can understand inverse operations can be used to isolate a variable and apply the skills to solve equations.

• I can understand essential mathematical properties, apply the properties to solve equations and justify each step.

Multiple Select

Consider the equation:

 $x+10=-4$  What operations are present in the equation?

• Addition

• Subtraction

• Division

• Multiplication

Multiple Select

Consider the equation:

 $x+10=-4$  How would you undo those operations?

• Addition

• Subtraction

• Division

• Multiplication

Multiple Select

Consider the equation:

 $x+10=-4$  What property (ies) which can be used to solve the equation?

• Addition property of equality

• Subtraction property of equality

• Division property of equality

• Multiplication property of equality

Multiple Select

What is the solution of the equation:

 $x+10=-4$  

• -14

• 6

• 4

• -4

Multiple Select

Consider the equation:

 $4\left(x-3\right)+5=9$  What operations are present in the equation? Select all that apply. 

• Addition

• Subtraction

• Division

• Multiplication

Multiple Select

Consider the equation:

 $4\left(x-3\right)+5=9$  What properties which be used to solve the equation?Select all that apply.

• Addition property of equality

• Subtraction property of equality

• Division property of equality

• Multiplication property of equality

Open Ended

Consider the equation:

 $4\left(x-3\right)+5=9$  What is the solution of the equation?

Open Ended

How do you make sure the solution to linear equation is correct?