Final answer:
To distribute the '-' sign outside the parentheses, change the sign of each term inside. In this case, (-(-s+8.1)) becomes s - 8.1
Step-by-step explanation:
To distribute the '-' sign outside the parentheses, we can change the sign of each term inside the parentheses. In this case, we have:
(-(-s+8.1)) = -1*(-s) + (-1)*(8.1) = s - 8.1