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Home > CC4 > Chapter 11 > Lesson 11.2.3 > Problem 11-84


Shu Min currently has 1980 digital songs, and downloads 30 more songs each month. Her older brother Wei currently has 2590 songs, but he only downloads 20 more songs each month. The computer they share can only hold 5000 songs. After how many months will their computer be full? Homework Help ✎

Let x represent the number of months.
Set up an expression for Shu Min and Wei.

Shu Min: 1980 + 30x will represent the number of songs she will have after x months.
What will her brother's expression be?