3n-r=s

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Solution for 3n-r=s equation: 


Simplifying
3n + -1r = s

Solving
3n + -1r = s

Solving for variable 'n'.

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

Add 'r' to each side of the equation.
3n + -1r + r = r + s

Combine like terms: -1r + r = 0
3n + 0 = r + s
3n = r + s

Divide each side by '3'.
n = 0.3333333333r + 0.3333333333s

Simplifying
n = 0.3333333333r + 0.3333333333s

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