f(-3)=4(-3)-9

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Solution for f(-3)=4(-3)-9 equation: 


Simplifying
f(-3) = 4(-3) + -9

Reorder the terms for easier multiplication:
-3f = 4(-3) + -9

Multiply 4 * -3
-3f = -12 + -9

Combine like terms: -12 + -9 = -21
-3f = -21

Solving
-3f = -21

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

Simplifying
f = 7

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