Matt H. answered 08/23/17
Tutor
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(335)
What are these letters doing in my equations? Here comes algebra!
If you know the total was 25, and that the magazine was 5, you know the 4 erasers together were 20.
Assuming that the erasers were priced easily, you can divide 20 dollars by 4 erasers.
20 divided by 4 is 5, so each eraser was 5 bucks.