Lesson 7.1 : Two- Step Equations

Lesson 7.1 : Two- Step Equations

Multiple Choice

Using Order of Operations in reverse means what do we do first to solve an equation?

• Add & Subtract

• Multiply & Divide

Multiple Choice

 $\frac{x}{2}-1\ =\ 4$  

What is the first step to solve this equation? 

• Undo addition

• Undo division 

Multiple Choice

 $\frac{x}{2}=\ 5$  

What is the next step to solve this equation? 

• Undo Addition

• Undo Division 

Isolate the Variable

• Inverse Order of Operations

• Undo Addition & Subtraction

• Undo Multiplication & Division

Multiple Choice

What is the the first step in this equation?

3x + 5 = 20

• Add 5 and 20

• Subtract 5 from both sides of the equation

• Add 3 and 5

• Multiply 3 by 5

Multiple Choice

After you subtract 5 from both sides of the equation

3x + 5 = 20

What will the equation look like?

• 3x = 25

• 3x = 20

• 3x = 3

• 3x = 15

Multiple Choice

What is the next step in the equation?

3x = 15

• Divide both sides by 3

• Subtract 3 and 15

• Add 3 and 15

• Multiply 3 and 15

Multiple Choice

What is the final answer?

3x = 15

• x = 45

• x = 5

• x = 18

• x = 12

• 5x

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