How to do conditional formatting by color?

Question

excel

https://docs.google.com/spreadsheets/d/1vqKnsN_8qQ...

In cell K1 , due to one formatting, the value turned gray - OK.
And now you need to make this value not bold, because. initially it is bold (well, the table looks more visually).

OR as another option to make it invisible at all, tk. it is repetitive and not informative.
OR: The value in cell K1 is displayed by the formula, you can write something else into it so that it is not initially displayed visible if there are the same values ​​in the range C1:J1 .

I'm fantasizing now, but maybe there really is such a miracle formula or formatting?

Answer 1

1. Conditional Formatting
   
2. Own formula
   
3. =СЧЁТЕСЛИ($C$1:$J$1;$K$1)>0
   
4. And make the text the same as the background when the condition is triggered