e) -3b - (8b - 2b)
To simplify the expression, we can distribute the negative sign inside the parentheses.
-3b - 8b + 2b
Combine like terms:
-3b - 6b
-9b
Therefore, the simplified expression is -9b.
d) (8x - 4x) * 2 + 4x - x
First, simplify the expression within the parentheses:
(8x - 4x) * 2 + 4x - x
4x * 2 + 4x - x
8x + 4x - x
Combine like terms:
(8 + 4 - 1)x
11x
Therefore, the simplified expression is 11x.