f(3)=-4*(3)-1

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Solution for f(3)=-4*(3)-1 equation: 


Simplifying
f(3) = -4(3) + -1

Reorder the terms for easier multiplication:
3f = -4(3) + -1

Multiply -4 * 3
3f = -12 + -1

Combine like terms: -12 + -1 = -13
3f = -13

Solving
3f = -13

Solving for variable 'f'.

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

Divide each side by '3'.
f = -4.333333333

Simplifying
f = -4.333333333

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