Question

Which of the following represents "eight times the difference of a number and seventeen is thirty"?

8N - 17 = 30
8(N - 17) = 30
8N - 17N = 30

Answer 1

The answer is 8(n-17)=30 because you are multiplying the difference which is grouped by the parentheses.

Answer 2

8(N - 17) = 30

Explanation:

Let the number be N.

Now, the given phrase is "eight times the difference of a number and seventeen is thirty"

Difference means subtraction.

Hence, the difference of a number and seventeen can be written as N - 17

Now, times means multiplication.

Hence, eight times the difference of a number and seventeen can be written as 8(N - 17)

Finally, this expression should be equal to 30. Hence, we have

8(N - 17) = 30

2nd option is correct.