f(x)=4+5x-x

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Solution for f(x)=4+5x-x equation: 


Simplifying
f(x) = 4 + 5x + -1x

Multiply f * x
fx = 4 + 5x + -1x

Combine like terms: 5x + -1x = 4x
fx = 4 + 4x

Solving
fx = 4 + 4x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 4x-1 + 4

Simplifying
f = 4x-1 + 4

Reorder the terms:
f = 4 + 4x-1

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