f(-1)=x^2-5x

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Solution for f(-1)=x^2-5x equation: 


Simplifying
f(-1) = x2 + -5x

Reorder the terms for easier multiplication:
-1f = x2 + -5x

Reorder the terms:
-1f = -5x + x2

Solving
-1f = -5x + x2

Solving for variable 'f'.

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

Divide each side by '-1'.
f = 5x + -1x2

Simplifying
f = 5x + -1x2

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