Please help me out solve it and tell me how you got that answer so I can understand please!

The solution for s in the given equation is

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Here is the complete question:

Solve for s in this equation   Depreciation.

To solve for s, that means we should make s the subject of the equation

From the given equation,

To solve for s, first multiply both sides by n to clear the fraction

We get

Then,

Now, add s to both sides

Then, subtract nD from both sides

∴

Hence, the solution for s in the given equation is

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