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kobusy [5.1K]
3 years ago
12

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

Mathematics
1 answer:
dimaraw [331]3 years ago
6 0

Answer:

180 pages

Step-by-step explanation:

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

\frac{7}{9} 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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