Q:

Linear Equations - What's wrong with my solution?

This is the math problem: -(b-1) = 1(1-4) - 4(b+8)
This is what I came up with:
-b + 1 = 1 - 4 - 4b - 32
-b + 33 = 1 - 4 - 4b
-5b + 33 = 1 - 4
-5b = -3 - 33 
-5b = -36
b = -36/-5

and It's apparently wrong for some reason. I'm supposed to get b = -12.
Where am I doing it wrong? 
Also does the order of operations matter here?

A:

It should be this:
$-b + 1 = 1 - 4 - 46 - 32$
$-b + 33 = 1 - 4 - 4b$
$\color{red}3b + 33 = 1 - 4$
$3b = -3 - 33 $
$3b = -36$
$b = -12$

