aracely2 aracely2

30-09-2015
Mathematics

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Alan is 14 years old . This is twice as old as his brother James is. How old is James ?

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WorldCitizen WorldCitizen

30-09-2015

Let's write this down:

a=14 (a will stand for alan)

J*2=a (j will be james)

and then we sustitude a for 14:

j*2=14 //divide both sides by 2:

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