f(7)=12+3x

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Solution for f(7)=12+3x equation: 


Simplifying
f(7) = 12 + 3x

Reorder the terms for easier multiplication:
7f = 12 + 3x

Solving
7f = 12 + 3x

Solving for variable 'f'.

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

Divide each side by '7'.
f = 1.714285714 + 0.4285714286x

Simplifying
f = 1.714285714 + 0.4285714286x

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