-3b-75=0 I need 2 solutions

Show me how you find the value of each variable and determine what the value of each variable is you i appreciate it : )

Determine the quotient and remainder when (6a3)+11a2-4a-9) is divided by (3a-2) express your answer in the form q(a) + r(a)/d(a)

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence