f+15=3

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Solution for f+15=3 equation: 


Simplifying
f + 15 = 3

Reorder the terms:
15 + f = 3

Solving
15 + f = 3

Solving for variable 'f'.

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

Add '-15' to each side of the equation.
15 + -15 + f = 3 + -15

Combine like terms: 15 + -15 = 0
0 + f = 3 + -15
f = 3 + -15

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

Simplifying
f = -12

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