4-f=f-12

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Solution for 4-f=f-12 equation:


Simplifying
4 + -1f = f + -12

Reorder the terms:
4 + -1f = -12 + f

Solving
4 + -1f = -12 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
4 + -1f + -1f = -12 + f + -1f

Combine like terms: -1f + -1f = -2f
4 + -2f = -12 + f + -1f

Combine like terms: f + -1f = 0
4 + -2f = -12 + 0
4 + -2f = -12

Add '-4' to each side of the equation.
4 + -4 + -2f = -12 + -4

Combine like terms: 4 + -4 = 0
0 + -2f = -12 + -4
-2f = -12 + -4

Combine like terms: -12 + -4 = -16
-2f = -16

Divide each side by '-2'.
f = 8

Simplifying
f = 8

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