Question

If 6 notebooks cost d dollars, how much, in dollars, does each notebook cost?

Answer 1

Explanation:

n represents the number of notebooks

d represents the cost of a notebook

n = d one notebook = d dollars

9n = 9d multiply both sides by 9

Answer 2

Explanation:

6 notebooks = $d

1 notebook = $?

So

1 notebook price = $d ÷ 6