B-(4-2b)+(3b-1)

To simplify the expression \( b - (4 - 2b) + (3b - 1) \), follow these steps:

1. Distribute the negative sign through the parentheses: \[ b - 4 + 2b + 3b - 1 \]

2. Combine like terms:

   • Combine the \( b \) terms: \( b + 2b + 3b = 6b \)
   • Combine the constant terms: \(-4 - 1 = -5\)

3. Put it all together: \[ 6b - 5 \]

So, the simplified expression is \( 6b - 5 \).