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Popolare Word Problems >

Emily is 2 years older than her sister Shelly. Eight years ago she was twice as old as Shelly. What are their present ages?

Soluzione

E mi l y i s 2 ye a rs o l d er t han h er s i s t er S h e ll y . E i g h t ye a rs a g o s h e w a s tw i ce a s o l d a s S h e ll y . Wha t a re t h e i r p rese n t a g es ?

Soluzione

Emily^{'} s age is : 12

Shelly^{'} s age is : 10

Fasi della soluzione

Translate the problem into an equation:

x - 8 = 2 (x - 2 - 8)

Risolvi per

x, x - 8 = 2 (x - 2 - 8) : x = 12

Trova age

Emily^{'} s age is : 12

Shelly^{'} s age is : 10

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