Can someone break this down further please?

Thanks Steven G, I can kinda see that, but that gets a little too strange for me. It's seems to be adding numbers to the original equation for intellectual exercise not as a way to solve it, as far as I understand.
I'm just trying to learn this stuff so I can go on to practical uses.
 
Thanks Steven G, I can kinda see that, but that gets a little too strange for me. It's seems to be adding numbers to the original equation for intellectual exercise not as a way to solve it, as far as I understand.
I'm just trying to learn this stuff so I can go on to practical uses.
All I did was multiply by 1.
 
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