x=2 should not be a legal solution to this equation...
Solve[lg(5-3x)=lg(x-3)
GeoGebra 5.0.152
But why should GeoGebra assume a Complex valued logaritm when for wxample Solve[x^2+1=0] assume real roots?
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The same problem 
But why should GeoGebra assume a Complex valued logaritm when for wxample Solve[x^2+1=0] assume real roots?
Comments have been locked on this page!