f(4)=2x-18

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Solution for f(4)=2x-18 equation: 


Simplifying
f(4) = 2x + -18

Reorder the terms for easier multiplication:
4f = 2x + -18

Reorder the terms:
4f = -18 + 2x

Solving
4f = -18 + 2x

Solving for variable 'f'.

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

Divide each side by '4'.
f = -4.5 + 0.5x

Simplifying
f = -4.5 + 0.5x

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