Question

(10,42-S):4,02=0,805

Answer 1

(10,42-S):4,02=0,805

10,42-S=3,2361

-S=3,2361-10,42

-S=-7,1839

S=7,1839

Answer 2

It seems like you've written a mathematical expression, but I'm not sure what you're asking. The expression you've provided is:

(10,42-S):4,02=0,805

This doesn't follow the typical mathematical notation, so it's a bit unclear what you're trying to convey. Could you please provide more context or clarify your question?