# One-step equations

More Options: Make a Folding Card

#### Storyboard Description

This storyboard does not have a description.

#### Storyboard Text

• Algebra:Good Morning Children
• Math
• One step equations
• Today, we will be solving one-step equations
• Algebra
• Math
• Let's get started
• Math
• Algebra
• x+5=120
• Equation
• This is a variable. A variable is an unknown number and we will try to find out what this unknown is.
• Inverse operations:Opposite operations that undo each other.ex. add and subtractmultiply and divide
• Math
• Algebra
• x+5=120
• To do this, we first have to isolate the variable (get it by itself), with inverse operations.
• Inverse operations:Opposite operations that undo each other.ex. add and subtractmultiply and divide
• Math
• BalanceDo the same to both sides of the equation
• x+5=120-5   -5-----------x=115
• The inverse of adding is subtracting, so subtract 5 from both sides of the equation.
• Multiply/Divide ex.2x=802    2x=40
• Math
• Algebra
• x+5=120-5   -5-----------x=115
• To check:Substitute value of variable into equation.Does it make sense?
• And we found the unknown!!!
Explore Our Articles and Examples

### Teacher Resources

Lesson Plans Worksheet TemplatesPoster Templates

### Film Resources

Film and Video Resources
Video Marketing