f-18=-1

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Solution for f-18=-1 equation: 


Simplifying
f + -18 = -1

Reorder the terms:
-18 + f = -1

Solving
-18 + f = -1

Solving for variable 'f'.

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

Add '18' to each side of the equation.
-18 + 18 + f = -1 + 18

Combine like terms: -18 + 18 = 0
0 + f = -1 + 18
f = -1 + 18

Combine like terms: -1 + 18 = 17
f = 17

Simplifying
f = 17

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