kn+4f=9u

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Solution for kn+4f=9u equation: 


Simplifying
kn + 4f = 9u

Reorder the terms:
4f + kn = 9u

Solving
4f + kn = 9u

Solving for variable 'f'.

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

Add '-1kn' to each side of the equation.
4f + kn + -1kn = -1kn + 9u

Combine like terms: kn + -1kn = 0
4f + 0 = -1kn + 9u
4f = -1kn + 9u

Divide each side by '4'.
f = -0.25kn + 2.25u

Simplifying
f = -0.25kn + 2.25u

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