Finding the value of a number by using an algebraic equation - Free math videos

The video tutorial guides viewers through solving a complex word problem by breaking it down into manageable steps. It begins with understanding the problem, identifying the main question, and assigning variables to unknowns. The tutorial then demonstrates how to formulate an equation from the word problem and solve it using algebraic methods, emphasizing the importance of order of operations and the use of parentheses to avoid mistakes.

What is the first step in solving a word problem?

• Assign a variable to the unknown

• Identify the question being asked

• Multiply all numbers by 5

• Solve the equation

What is the purpose of assigning a variable in a word problem?

• To make the problem more complex

• To eliminate the need for equations

• To simplify the addition process

• To represent the unknown number

Why is it important to use parentheses in the equation?

• To make the equation look neat

• To ensure correct order of operations

• To add more variables

• To increase the difficulty level

What does 'one less than twice a number' mean in mathematical terms?

• 2x + 1

• x - 2

• 2x - 1

• x + 2

What is the next step after setting up the equation?

• Add all numbers together

• Use the distributive property to solve

• Divide by the largest number

• Subtract the smallest number

How do you eliminate a variable from one side of the equation?

• Divide the variable by itself

• Multiply the variable by zero

• Subtract the variable from both sides

• Add the variable to both sides

What is the final step in solving the equation?

• Check if the solution satisfies the original problem

• Multiply the solution by 5

• Divide the solution by 2

• Add 10 to the solution