SOLUTION: The sum of the page numbers on facing pages of a book is 157; what are the page numbers?

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Question 141352: The sum of the page numbers on facing pages of a book is 157; what are the page numbers?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
X+(X=1)=157
X+X+1=157
2X=157-1
2X=156
X=156/2
X=78 FOR THE LEFT HAND PAGE NUMBER.
78=1=79 FOR THE RIGHT HAND PAGE.
PROOF:
78+79=157
157=157