-1,94в+3,55-9,71в-0,17в-10=?

Question

-1,94в+3,55-9,71в-0,17в-10=?

Answer 1

- 1,94b + 3,55 - 9,71b - 0,17b - 10 = - (1,94b + 9,71b + 0,17b) - (10 - 3,55) =
= - 11,82b - 6,45.