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

Tags

CCSS.7.EE.B.4A

The goal of solving two-step equations is to:

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

Tags

CCSS.7.EE.B.4A

 $\frac{x}{2}-5=3$  

• x = -2

• x = 2

• x = 16

• x = 8

Tags

CCSS.7.EE.B.4A

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

• Inverse operations
• math
• variable
• PEMDAS

Tags

CCSS.7.EE.B.4A

Who is the best friend in this problem?

 $5x\ +\ 8\ =\ 18$  

• 5

• 8

• 2

• 18

Tags

CCSS.7.EE.B.4A

What is step 1 in the following equation?

 $5x\ -\ 8\ =\ 18$  

• Divide by 5
  

• Add 8
  

• Subtract 8
  

• Multiply by 5
  

Tags

CCSS.HSA.REI.A.1

Solve for x:

 $2x\ -\ 8\ =\ 12$  

• x = 2
  

• x = 10
  

• x = 14
  

• x = -4
  

Tags

CCSS.7.EE.B.4A

Solve for x:

 $\ \frac{x}{3}-6=4$  

• x = 30
  

• x = 18
  

• x = -6
  

• x = 12
  

Tags

CCSS.7.EE.B.4A

Solve for x:

 $\frac{\left(7+x\right)}{2}=\ 14$  

• x = 35
  

• x = 0
  

• x = 21
  

• x = 14
  

Tags

CCSS.7.EE.B.4A

Solve for x:

 $\frac{x}{3}+\ 9\ =\ 12$  

• x = 1
  

• x = 25
  

• x = 9
  

• x = -9
  

Tags

CCSS.7.EE.B.4A