x − t h e a g e o f A l a n ′ s b ro t h er 14 = 2 x x = 2 14 = 7 ye a rs
James is 7 years old, as Alan's age of 14 is twice that of James. We find this by setting up the equation 14 = 2x and solving for x. Dividing 14 by 2 gives us James's age.
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