f-12=3

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Solution for f-12=3 equation: 


Simplifying
f + -12 = 3

Reorder the terms:
-12 + f = 3

Solving
-12 + f = 3

Solving for variable 'f'.

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

Add '12' to each side of the equation.
-12 + 12 + f = 3 + 12

Combine like terms: -12 + 12 = 0
0 + f = 3 + 12
f = 3 + 12

Combine like terms: 3 + 12 = 15
f = 15

Simplifying
f = 15

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