f(-2)=3(-2)-9

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Solution for f(-2)=3(-2)-9 equation: 


Simplifying
f(-2) = 3(-2) + -9

Reorder the terms for easier multiplication:
-2f = 3(-2) + -9

Multiply 3 * -2
-2f = -6 + -9

Combine like terms: -6 + -9 = -15
-2f = -15

Solving
-2f = -15

Solving for variable 'f'.

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

Divide each side by '-2'.
f = 7.5

Simplifying
f = 7.5

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