Question: find the general solution of xX' = aX

iknow it's kinda simple ode.. but, i just dont know y i cant get the correct answer..

solution..

xX' = aX

x dX/dx = aX

d/dx X = aX/x

X = ∫aX/x dx

X = aX ln |x| + C

the general solution is Ax^a

problem : i cant get the correct answer..