f(3)=9-3

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Solution for f(3)=9-3 equation: 


Simplifying
f(3) = 9 + -3

Reorder the terms for easier multiplication:
3f = 9 + -3

Combine like terms: 9 + -3 = 6
3f = 6

Solving
3f = 6

Solving for variable 'f'.

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

Divide each side by '3'.
f = 2

Simplifying
f = 2

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