Hi, I'm not good in math but I need to learn how to solve these differential equations.(adsbygoogle = window.adsbygoogle || []).push({});

It was really hard to write in TeX form, sorry.

d a / d t = d^2 a / d y^2 + d / d y (a * d x / d y)

d b / d t = d^2 b / d y^2 - d / d y (b * d x / d y)

d^2 x / d y^2 = - (a - b)

I need to solve for a, b and x.

What type of DE is this, a PDE? Which methods should I use?

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# Need help for solving a set of differential eqns

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