2f-9=s

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Solution for 2f-9=s equation: 


Simplifying
2f + -9 = s

Reorder the terms:
-9 + 2f = s

Solving
-9 + 2f = s

Solving for variable 'f'.

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

Add '9' to each side of the equation.
-9 + 9 + 2f = 9 + s

Combine like terms: -9 + 9 = 0
0 + 2f = 9 + s
2f = 9 + s

Divide each side by '2'.
f = 4.5 + 0.5s

Simplifying
f = 4.5 + 0.5s

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