f+20=-1

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Solution for f+20=-1 equation:


Simplifying
f + 20 = -1

Reorder the terms:
20 + f = -1

Solving
20 + f = -1

Solving for variable 'f'.

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

Add '-20' to each side of the equation.
20 + -20 + f = -1 + -20

Combine like terms: 20 + -20 = 0
0 + f = -1 + -20
f = -1 + -20

Combine like terms: -1 + -20 = -21
f = -21

Simplifying
f = -21

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