Question

two pages that face each other in a book have 437 as the sum of their page numbers. what is the number of the page that comes first?

Answer 1

Page 218

Explanation:

Let x = the first page

Let x + 1 = the second page

x + x+ 1 = 437 combine like terms

2x + 1 = 437 Subtract 1 from both sides

2x = 436 Divide both sides by 2

x = 218

Check:

218 + 219 = 437

437 = 437

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