Solving Two Step Equations

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

The goal of solving two-step equations is to:

• francine
• Find the coefficient 
• Find the value of the variable

10.    x / 2  - 5 = 3

• x = -2
• x = 2
• x = 16
• x = 8

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

• Inverse operations
• math
• variable
• PEMDAS

What is step 1 in the following equation?

 $5x\ -\ 8\ =\ 18$  

• Divide by 5
  

• Add 8
  

• Subtract 8
  

• Multiply by 5
  

Solve for x:

 $2x\ -\ 8\ =\ 12$  

• x = 2
  

• x = 10
  

• x = 14
  

• x = -4
  

Solve for x:

 $4\ =\ \frac{x}{3}-6$  

• x = 30
  

• x = 18
  

• x = -6
  

• x = 12
  

Solve for x:

 $\frac{x}{3}+\ 9\ =\ 12$  

• x = 1
  

• x = 25
  

• x = 9
  

• x = -9
  

Which equation fits the word problem?

Katie rented a bike from James' Bikes. It cost $19 plus $6 per hour. If Katie paid $49, then he rented the bike for how many hours?

• 19x + 6 = 49

• 49 - 19x = 6

• 6x - 19 = 49

• 6x + 19 = 49

What is the first step in solving the following equation?
3x - 5 = 20

• multiply both sides by 5
• add 5 to both sides
• divide both sides by 5
• subtract both sides by 5