f(5)=12-3*5

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Solution for f(5)=12-3*5 equation: 


Simplifying
f(5) = 12 + -3 * 5

Reorder the terms for easier multiplication:
5f = 12 + -3 * 5

Multiply -3 * 5
5f = 12 + -15

Combine like terms: 12 + -15 = -3
5f = -3

Solving
5f = -3

Solving for variable 'f'.

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

Divide each side by '5'.
f = -0.6

Simplifying
f = -0.6

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