Question: How do I solve this equation in Maple?

Hello everyone.

Please help me solve this equation for u using Maple.

Div(u) = d(ru)/(dr)*1/r = 2*a = const; u = u(r);

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Divergence(u) = d(ru)/(r*dr) and d(ru)/(r*dr) = 2*a and 2*a = const

u = u(r)


Thanks in advance for your help.

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