f(-3)=3(-3)-15

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Solution for f(-3)=3(-3)-15 equation: 


Simplifying
f(-3) = 3(-3) + -15

Reorder the terms for easier multiplication:
-3f = 3(-3) + -15

Multiply 3 * -3
-3f = -9 + -15

Combine like terms: -9 + -15 = -24
-3f = -24

Solving
-3f = -24

Solving for variable 'f'.

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

Divide each side by '-3'.
f = 8

Simplifying
f = 8

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