Keys to Solving Equations

What is the first step in solving the equation below?

• Add 2 to both sides

• Multiply both sides by 3

• Subtract 2 from both sides

• Divide both sides by 3

What is the first step in solving the equation below?

• Distribute 4 to x and -1

• Distribute 4 to x and 1

• Distribute 4 to x and -1 and 10

• Distribute -4 to x and -1

What is the first step in solving the equation below?

• Distribute 6 to 3 and -2x

• Distribute 8 to 3 and -2x

• Distribute 8 to 3 and 2x 

• Distribute 6 to 3 and 2x

Select all equations that match this tape diagram.

Select all equations that match this tape diagram.

Select all equations that match this balanced hanger.

Select all equations that match this tape diagram.

What is the coefficient in this expression? 3x=21

• 3

• x

• 21

What is the variable in this expression? 3x=21

• 3

• x

• 21

What is the value of x in this tape diagram?

• 3x

• 9

• 3

• 1/3