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Susan is twice as old as Luna. The sum of their ages 4 years ago was 37. Find how old they are now.

Solución

Susan is twice as old as Luna. The sum of their ages 4 years ago was 37. Find how old they are now.

Solución

Luna^{'} s age is : 15

Susan^{'} s age is : 30

Pasos de solución

Translate the problem into an equation:

2 x - 4 + x - 4 = 37

Resolver para

x, 2 x - 4 + x - 4 = 37 : x = 15

Hallar age

Luna^{'} s age is : 15

Susan^{'} s age is : 30

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