Mathematics, 13.09.2021 21:10, torresalysabeth

Sanji is 3 times as old as Mimi now. 7 years ago, the sum of their ages was 18 years. Let Mimi's present age be x years. (a) Express Sanji's present age in terms of x.

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Sanji is 3 times as old as Mimi now. 7 years ago, the sum of their ages was 18 years. Let Mimi's pre...