Euler homogeneous equations

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Find the general solution of the Euler homogeneous equations?

dy/dx= (2y-x)/(2x-y)

Using the substitution y=vx

v+x(dv/dx)= (2xv-x)/(2x-xv)

v+ x(dv/dx)= x(2v-1)/x(2-v)

v+ x(dv/dx)= (2v-1)/(2-v)

x(dv/dx)= ((2v-1)/(2-v))-v

x(dv/dx)= (v^2-1)/(2-v)

integral ((2-v)/(v^2-1))dv = integral (1/x)dx

integral (2-v)/((v-1)*(v+1))dv = integral (1/x)dx

integral 1/(2v-2)dv - integral 3/(2v+2)dv = integral 1/x dx

lnx + c = 0.5ln(2v-2)- 1.5ln(2v+2)

lnx + c = 0.5ln((2y/x)-2)- 1.5ln((2y/x)+2)

Is this right so far and what do I do now?

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You have some slight issues from the point where I start. We have:

$$\displaystyle \int \dfrac{2-v}{v^2-1}~dv = \int \dfrac 1x ~dx$$

This yields:

$$\dfrac 12 \ln (1 - v) - \dfrac 32 \ln (1 + v) = \ln x + c$$

Now, we substitute back $v = \dfrac yx$, yielding:

$$\dfrac 12 \ln \left(1 - \dfrac yx\right) - \dfrac 32 \ln \left(1 + \dfrac yx\right) = \ln x + c$$

Hopefully, you see the slight algebra issue. Also, it does not look like we can simplify this to isolate $y(x)$ to anything useful, so we are done.