Упростить: -8-2(1-б)-2б+1

Question

Упростить:
-8-2(1-б)-2б+1

Answer 1

- 8 - 2(1 - b) - 2b + 1 =
= - 8 - 2 + 2b - 2b + 1 =
= (- 8 - 2 + 1) + (2b - 2b) = - 9.