One Step Equation Review

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

-7b = - 49

• B=7

• B=-7

• B=2

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

What do you need to do to solve this equation?

3a =12

• add 3 to both sides

• subtract 3 from both sides

• divide both sides by 3

• divide just the right by 3

 $\frac{m}{4}\ =\ -5$  

• -1

• 20

• -20

• 9

-6x = 30

• x = - 5

• x = 24

• x = 5

• x = 36

• t = 3

• t = -40

• t = -3

• t = 40

5 = f - 2

• 4
• 7
• -3
• 2

r + 20 = 27

• r = 7
• r = 47
• r = 13
• r = 20