My teacher gave us this problem in class and then when she went to show us how to solve, she got stuck too!(adsbygoogle = window.adsbygoogle || []).push({});

[tex] 1+xy = xy' [/tex]

after some rearranging and dividing we have

[tex] y' - y = 1/x [/tex]

we used an integrating factor of [tex] e^ {-x} [/tex]

and got the result of [tex] (e^ {-x}y)' = e^ {-x}/x [/tex]

integrating gives [tex] (e^ {-x}y) = {\int e^ {-x}/x \dx}[/tex]

and that's about where we got stuck. Integration by parts just took us in a loop.

Any help is appreciated. Thanks!

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# More linear eqn trouble

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