f(-2)=-2-13

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Solution for f(-2)=-2-13 equation: 


Simplifying
f(-2) = -2 + -13

Reorder the terms for easier multiplication:
-2f = -2 + -13

Combine like terms: -2 + -13 = -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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