Subject (3b-2c) - (6c+2b) -(b+c)
To simplify the expression (3b-2c) - (6c+2b) -(b+c), we can start by distributing the negative sign to the terms inside the second parentheses:
(3b - 2c) - 6c - 2b - (b + c)
Now, we can combine like terms by adding or subtracting:
3b - 2c - 6c - 2b - b - c
Next, we can combine similar terms:
(3b - 2b - b) - (2c + 6c + c)
Finally, we can simplify further:
b - 9c