Solving Word Problems with Equations

The video tutorial covers solving word problems using equations. It begins with an introduction to the concept, followed by three examples. The first example involves finding a number when given the sum of twice the number and another value. The second example deals with a number multiplied by six and increased by three. The final example involves calculating the total number of students in a class based on a fraction of them attending an event. The tutorial emphasizes setting up equations correctly and solving them step-by-step.

What is the first step in solving word problems using equations?

• Create an equation from the word problem

• Ignore the problem statement

• Guess the answer

• Write down random numbers

In the first example, what does 'twice a number' imply?

• Multiplication

• Subtraction

• Division

• Addition

What operation does the word 'sum' indicate?

• Addition

• Multiplication

• Division

• Subtraction

What is the result of solving the equation 2N + 21 = 83?

• N = 31

• N = 21

• N = 62

• N = 83

In the second example, what does 'increased by 3' mean?

• Divide by 3

• Multiply by 3

• Subtract 3

• Add 3

What is the solution to the equation 6N + 3 = 27?

• N = 4

• N = 3

• N = 27

• N = 6

In the third example, what does 'four-fifths of the class' suggest?

• Addition

• Subtraction

• Fraction

• Whole number

How do you represent the class size in the third example?

• Using the number 64

• Using the letter N

• Using the number 80

• Using the letter C

What is the total number of kids in the class if 64 went to the zoo?

• 100

• 16

• 80

• 64

What is an alternative method to solve the third example?

• Using division

• Using addition

• Using subtraction

• Using proportions