Answer:
(x+y)=`(`x*`y)
Explanation:
We have to apply some properties of logic gates (as involution and DeMorgan's law) in order to get the answer:
[tex]`(`x)=x\\and\\`(x+y)=`x*`y[/tex]
applying the last two properties:
[tex](x+y)=`(`(x+y))\\(x+y)=`(`x*`y)[/tex]
So if we negate x and y, multiply them and then negate them again, it will be equal to a logic sum.
