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Popolare Word Problems >

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

Soluzione

S u s an i s tw i ce a s o l d a s Lu na . T h e s u m o f t h e i r a g es 4 ye a rs a g o w a s 37. F in d h o w o l d t h ey a re n o w .

Soluzione

Luna^{'} s age is : 15

Susan^{'} s age is : 30

Fasi della soluzione

Translate the problem into an equation:

2 x - 4 + x - 4 = 37

Risolvi per

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

Trova age

Luna^{'} s age is : 15

Susan^{'} s age is : 30

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