Let X be the number of years before Fouad's age doubles Ahmed's age.

So (X+11)*2 = X+26.

So X*2 + 22 = X + 26.

So X = 26 - 22 = <<26-22=4>>4 years.

# Answer

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<|im_start|>system
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<|im_start|>user
Ahmed is 11 years old and Fouad is 26 years old. In how many years will Fouad's age be double Ahmed's current age?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
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Ahmed is 11 years old and Fouad is 26 years old. In how many years will Fouad's age be double Ahmed's current age?
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