3=23-f

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Solution for 3=23-f equation: 


Simplifying
3 = 23 + -1f

Solving
3 = 23 + -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.
3 + f = 23 + -1f + f

Combine like terms: -1f + f = 0
3 + f = 23 + 0
3 + f = 23

Add '-3' to each side of the equation.
3 + -3 + f = 23 + -3

Combine like terms: 3 + -3 = 0
0 + f = 23 + -3
f = 23 + -3

Combine like terms: 23 + -3 = 20
f = 20

Simplifying
f = 20

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