f(3)=2x+9

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Solution for f(3)=2x+9 equation: 


Simplifying
f(3) = 2x + 9

Reorder the terms for easier multiplication:
3f = 2x + 9

Reorder the terms:
3f = 9 + 2x

Solving
3f = 9 + 2x

Solving for variable 'f'.

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

Divide each side by '3'.
f = 3 + 0.6666666667x

Simplifying
f = 3 + 0.6666666667x

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