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✓ Mathematica : cpu = 0.138472 (sec), leaf count = 16
DSolve[x*Tan[y[x]/x] - y[x] + x*Derivative[1][y][x] == 0,y[x],x]
✓ Maple : cpu = 0.075 (sec), leaf count = 14
dsolve(x*diff(y(x),x)+x*tan(y(x)/x)-y(x) = 0,y(x))
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