f(3)=2x-5x

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Solution for f(3)=2x-5x equation: 


Simplifying
f(3) = 2x + -5x

Reorder the terms for easier multiplication:
3f = 2x + -5x

Combine like terms: 2x + -5x = -3x
3f = -3x

Solving
3f = -3x

Solving for variable 'f'.

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

Divide each side by '3'.
f = -1x

Simplifying
f = -1x

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