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adding 7 songs to the mp3 = N+7
deleting two songs from the mp3 = N-2
4 times the amount of songs on the mp3 = 4N
half the songs on the mp3 = N/2

Answer:

[tex]n+7=[/tex] This means that we add 7 more songs to the total stored songs.

[tex]n-2=[/tex] This means that the total number of stored songs we subtract 2 songs.

[tex]4n =[/tex]This means that the total number of stored songs is multiplied by 4.

[tex]\frac{n}{2}=[/tex] This means that the total number of stored songs is divided by two, now we have half of the total songs.

Step-by-step explanation:

If n represents the number of stored songs, let's see how this number could vary in each case.

[tex]n+7=[/tex] = this means that we add 7 more songs to the total stored songs.

[tex]n-2=[/tex] This means that the total number of stored songs we subtract 2 songs.

[tex]4n =[/tex]This means that the total number of stored songs is multiplied by 4.

[tex]\frac{n}{2}=[/tex] This means that the total number of stored songs is divided by two, now we have half of the total songs.

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