f(4)=(4-20)-6

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Solution for f(4)=(4-20)-6 equation: 


Simplifying
f(4) = (4 + -20) + -6

Reorder the terms for easier multiplication:
4f = (4 + -20) + -6

Combine like terms: 4 + -20 = -16
4f = (-16) + -6
4f = -16 + -6

Combine like terms: -16 + -6 = -22
4f = -22

Solving
4f = -22

Solving for variable 'f'.

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

Divide each side by '4'.
f = -5.5

Simplifying
f = -5.5

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