Let's say that the number of comic books that Jose had on each shelf before his father added the 20 comic books is x.
Since there are 5 shelves with an equal number of comic books on each shelf, then the total number of comic books in the 5 shelves is 5*x = 5x.
After his father added 20 comic books to the bottom shelf, the total number of comic books on the bottom shelf became x + 20.
The total number of comic books in the 5 shelves now is x + (x + 20) + 5x = 7x + 20.
Since this total number of books is 125, we can write the equation as 7x + 20 = 125.
By subtracting 20 from both sides, we get 7x = 105.
We then divide both sides by 7 to find x = 105/7 = <<105/7=15>>15.
Therefore, the total number of comic books in Jose's collection is 7x + 20 = 7*15 + 20 = 105 + 20 = <<7*15+20=125>>125 comic books. Answer: \boxed{125}.
Jose has a comic book collection that he keeps among 5 shelves with an equal number on each self. His father adds 20 comic books to the bottom shelf, so the self now has 125 books. How many total are in his collection m? Use algebra to solve the equation
1 answer