Answer:
n = (C-d)/d (<--- new equation)
Explanation:
To solve for n, your main goal is to get the letter by itself, alone on one side of the equation.
Start by subtracting d from both sides. This will give you: C-d=dn
Now since you have another variable being multiplied to n, you need to divide both sides by that variable. In this case, d. This will give you: (C-d)/d=n.
Note: you cannot simplify further due to your new equation wanting the difference of C and d to be divided by d, not C divided by d and d divided by d separately.
So now if you were given numerical values of C and d to find n, plug them in to your new equation.