How to write an equation and solve from a word problem

The video tutorial explains a problem where Brianna and Molly want to buy the same bicycle but lack sufficient funds individually. By defining a variable x as the cost of the bicycle, the teacher guides through setting up and solving an equation to find the cost. The solution involves understanding the money each needs and combining their funds to solve for x, which equals $138.

What is the main question we are trying to solve in this problem?

• How much money does Brianna have?

• What is the cost of the bicycle?

• How much more money does Molly need?

• Can Brianna and Molly buy two bicycles?

What does the variable x represent in the equation?

• The total money they both have

• The cost of the bicycle

• The amount of money Molly has

• The amount of money Brianna has

How is Brianna's current amount of money expressed in terms of x?

• x - 65

• x + 73

• x - 73

• x + 65

What operation is used to combine Brianna's and Molly's money?

• Multiplication

• Subtraction

• Addition

• Division

What is the final cost of the bicycle after solving the equation?

• $200

• $65

• $73

• $138