the sum of the page numbers on the facing pages of a book is 77 what are the pages on the left and right

Let's call the page numbers on the left and right "x" and "x+1," respectively.

According to the problem, the sum of the page numbers on the facing pages is 77:

x + (x+1) = 77

Simplifying the equation, we have:

2x + 1 = 77

Subtracting 1 from both sides:

2x = 76

Dividing both sides by 2:

x = 38

Therefore, the page numbers on the left and right are 38 and 39, respectively.