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After reading 7/9 of a book, 40 pages are left. Find the total number of pages in the book​

Answer :

Answer:

180 pages

Step-by-step explanation:

let x be the number of pages in the book , then

[tex]\frac{7}{9}[/tex] x + 40 = x ( multiply through by 9 to clear the fraction )

7x + 360 = 9x ( subtract 7x from both sides )

360 = 2x ( divide both sides by 2 )

180 = x

The total number of pages in the book is 180

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