\[10 + 3b - (8b + 2) - 5 + b =\]
\[= 10 + 3b - 8b - 2 - 5 + b = 3 - 4b\]
\[b = - 10:\]
\[3 - 4 \cdot ( - 10) = 3 + 40 = 43.\]
\[Ответ:43.\]