Define a variable and write each phrase as an algebraic expression:

3 more than twice as many ringtones as mary

3 more than twice as many ringtones as Mary.

m= Mary

Twice as many ringtones means multiply by 2, so 2m.

It is 3 more, so 3+2m

3 more than twice as many ringtones as Mary would give the equation 3+2m.

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