f(3)=-2(3*3)-4

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Solution for f(3)=-2(3*3)-4 equation: 


Simplifying
f(3) = -2(3 * 3) + -4

Reorder the terms for easier multiplication:
3f = -2(3 * 3) + -4

Multiply 3 * 3
3f = -2(9) + -4

Multiply -2 * 9
3f = -18 + -4

Combine like terms: -18 + -4 = -22
3f = -22

Solving
3f = -22

Solving for variable 'f'.

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

Divide each side by '3'.
f = -7.333333333

Simplifying
f = -7.333333333

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