Book read

If Petra read 10 pages per day, she would read the book two days earlier than she read 6 pages a day. How many pages does a book have?

Correct result:

n =  30

Solution:


10(d-2) = n
6d = n

10•(d-2) = n
6•d = n

10d-n = 20
6d-n = 0

d = 5
n = 30

Our linear equations calculator calculates it.



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