f(-2)=1/2(-2)+4

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Solution for f(-2)=1/2(-2)+4 equation: 



f(-2)=1/2(-2)+4

We move all terms to the left:

f(-2)-(1/2(-2)+4)=0

We multiply parentheses

-2f-(1/2(-2)+4)=0

We multiply all the terms by the denominator


-2f*2(-2)+4)-(1=0

We add all the numbers together, and all the variables

-2f*2(-2)=0

Wy multiply elements

-4f^2(-=0

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