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Math Help - differential equation problem

  1. #1
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    differential equation problem

    I'm having difficulty in solving the following differential equation
    y+(x)dy/dx=sin(x+y).

    I've tried the substitutions y=xv and u=x+y, but i cannot get a solution this way, can anyone help?
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  2. #2
    A Plied Mathematician
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    Duplicate post.
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