12+f=3

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Solution for 12+f=3 equation: 


Simplifying
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 = -9
f = -9

Simplifying
f = -9

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