12=8-f

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Solution for 12=8-f equation:


Simplifying
12 = 8 + -1f

Solving
12 = 8 + -1f

Solving for variable 'f'.

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

Add 'f' to each side of the equation.
12 + f = 8 + -1f + f

Combine like terms: -1f + f = 0
12 + f = 8 + 0
12 + f = 8

Add '-12' to each side of the equation.
12 + -12 + f = 8 + -12

Combine like terms: 12 + -12 = 0
0 + f = 8 + -12
f = 8 + -12

Combine like terms: 8 + -12 = -4
f = -4

Simplifying
f = -4

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