Halima is n years old. Her brother's age is 5 years more than half of her age. How old is her brother?

解

H a l ima i s n ye a rs o l d . Her b ro t h e r^{'} s a g e i s 5 ye a rs m ore t han ha l f o f h er a g e . Ho w o l d i s h er b ro t h er ?

Brother^{'} s age is : 10

解答ステップ

Translate the problem into an equation:

y = 5 + \frac{1}{2} y

y

を解く

y = 5 + \frac{1}{2} y : y = 10

Brother^{'} s age is : 10