f(x)=-5x-9x+9

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Solution for f(x)=-5x-9x+9 equation: 


Simplifying
f(x) = -5x + -9x + 9

Multiply f * x
fx = -5x + -9x + 9

Reorder the terms:
fx = 9 + -5x + -9x

Combine like terms: -5x + -9x = -14x
fx = 9 + -14x

Solving
fx = 9 + -14x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 9x-1 + -14

Simplifying
f = 9x-1 + -14

Reorder the terms:
f = -14 + 9x-1

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