Solving One-Step Equations

To solve one-step equations, we'll need to use inverse operations. Inverse operations are operations that ''undo'' each other.

What is the inverse operation of addition?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.6.EE.B.7

Let's say we have to solve this equation:

x + 2 =7.

How do you undo addition?

• Multiply by 2

• Divide by 2

• Subtract 2

• Add 2

Tags

CCSS.6.EE.B.7

When you are solving an equation, you can think of it as a balance scale. The ''weight'' of the left and right sides of the equal sign have to be the same.

So, how can you check if your answer is correct?

Tags

CCSS.8.EE.C.7B

​If you do anything to an equation, it's important to do it to:

• Both sides so that it stays balanced

• To the right side only

• To the left side only

Tags

CCSS.6.EE.B.7

To solve the equation below, you would?

x + 35 = 60

• add 35 to the right side

• subtract 35 from both sides

• multiply each side by 35

• add 60 to each side

Tags

CCSS.6.EE.B.7

What is the first step to solve this equation?

3x = 21

• Add 3 to both sides

• Subtract 3 from both sides

• Multiply by 3 on both sides

• Divide by 3 on both sides

Tags

CCSS.6.EE.B.7

How would you solve this equation: $\frac{n}{3}=33$  ?

• Divide

• Multiply

• Add

• Subtract

Tags

CCSS.6.EE.B.7

What equation matched this situation: Edward had some books and bought 4 more. He now has a total of 19 books.

• x - 4 =19

• x + 4 = 19

• 4x = 19

• 19 - x = 4

Tags

CCSS.HSA.CED.A.3

Find the value of x: 144 = 12x

• x = 11

• x = 20

• x = 24

• x = 12

Tags

CCSS.6.EE.B.7

Solve the equation: x + 14 = 120

• x = 100

• x = 96

• x = 106

• x = 6

Tags

CCSS.6.EE.B.7