Let's simplify the expression step by step.
- Distribute the constants:
- \( -4(10b - 10c) = -40b + 40c \)
- \( -10(-4c + 3b) = 40c - 30b \)
So the expression becomes: \[ -40b + 40c + 9c + 40c - 30b \]
- Combine like terms:
- Combine the \( b \) terms: \( -40b - 30b = -70b \)
- Combine the \( c \) terms: \( 40c + 9c + 40c = 89c \)
Putting it all together, we have: \[ -70b + 89c \]
Thus, the expression simplified to its simplest form is: \[ -70b + 89c \]