Найдите значение b = -10-3,9 2) b=18*(1-5/14)

B = (-10) - 3,9 = (-13,9)
2)b = 18 · (1 - 5/14) = (18 - (5 · 18)/14) = 18/1 - 90/14 = (18 · 14)/14 - 90/14 = 252/14-
- 90/14 = (252 - 90)/14 = 162/14 = 11,5714285714 = 11,571428
3) b + b = (-13,9) + 11,571428 = (−2,328572) = (-2,33)