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Популярный >

Alex is ten years younger than Toni. Five years later, Toni will be twice as old as Alex. Find their present ages.

Решение

Alex is ten years younger than Toni. Five years later, Toni will be twice as old as Alex. Find their present ages.

Решение

Alex^{'} s age is : 5

Toni^{'} s age is : 15

Шаги решения

Translate the problem into an equation:

x + 10 + 5 = 2 (x + 5)

Решите для

x, x + 10 + 5 = 2 (x + 5) : x = 5

Найдите age

Alex^{'} s age is : 5

Toni^{'} s age is : 15

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