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Beliebt >

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

Lösung

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

Lösung

Alex^{'} s age is : 5

Toni^{'} s age is : 15

Schritte zur Lösung

Translate the problem into an equation:

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

Löse nach

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

Finde age

Alex^{'} s age is : 5

Toni^{'} s age is : 15

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