-x-3=f

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Solution for -x-3=f equation: 


Simplifying
-1x + -3 = f

Reorder the terms:
-3 + -1x = f

Solving
-3 + -1x = f

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -1x = 3 + f

Combine like terms: -3 + 3 = 0
0 + -1x = 3 + f
-1x = 3 + f

Divide each side by '-1'.
x = -3 + -1f

Simplifying
x = -3 + -1f

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