The left and right page numbers of an open book are two consecutive integers whose sum is 209. Find these page numbers.
Let xxx be the first page
2nd page =x+1x+1x+1
Thus ;
x+x+1=209x+x+1=209x+x+1=209
2x+1=2092x+1=2092x+1=209
2x=2082x=2082x=208
xxx =104=104=104
x+1=105x+1=105x+1=105
Thus the pages are 104 and 105
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