f(7)=4x-x

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Solution for f(7)=4x-x equation: 


Simplifying
f(7) = 4x + -1x

Reorder the terms for easier multiplication:
7f = 4x + -1x

Combine like terms: 4x + -1x = 3x
7f = 3x

Solving
7f = 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 = 0.4285714286x

Simplifying
f = 0.4285714286x

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