f(-2)=-5(-2)-1

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Solution for f(-2)=-5(-2)-1 equation: 



f(-2)=-5(-2)-1

We move all terms to the left:

f(-2)-(-5(-2)-1)=0

We add all the numbers together, and all the variables

f(-2)-9=0

We multiply parentheses

-2f-9=0

We move all terms containing f to the left, all other terms to the right

-2f=9

f=9/-2

f=-4+1/2

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