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Популярное Word Problems >

boy is 6 years older than sister. in three years boy will be twice her age

Решение

b oy i s 6 ye a rs o l d er t han s i s t er . in t h ree ye a rs b oy w i ll b e tw i ce h er a g e

Решение

Boy^{'} s age is : 9

Sister^{'} s age is : 3

Шаги решения

Translate the problem into an equation:

x + 3 = 2 (x - 6 + 3)

Решите для

x, x + 3 = 2 (x - 6 + 3) : x = 9

Найдите age

Boy^{'} s age is : 9

Sister^{'} s age is : 3

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