r(s)=n

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Solution for r(s)=n equation: 


Simplifying
r(s) = n

Multiply r * s
rs = n

Solving
rs = n

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by 's'.
r = ns-1

Simplifying
r = ns-1

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