I’m not 100% sure as to what you mean by this, but I’ll try to answer this as best as I can.
So, let’s start out with distributive property.
6x-5=5(x-3)+x
6x-5=(x*5)-(5*3)+x
You should have:
6x-5 = 5x-15+x
Next, add your like terms.
6x-5=6x-15
Now, bring your variable over to one side.
6x-5=6x-15
-6x -6x
-5=-15
Since these aren’t equal to each other, there’s no solution.
Hope this helps!