Simplify -8 + 6(b - 1).

To simplify -8 + 6(b - 1), we use the distributive property of multiplication over addition/subtraction:

-8 + 6(b - 1) = -8 + 6b - 6(1)

= -8 + 6b - 6

= 6b - 14

Therefore, the simplified expression is 6b - 14.