f(-3)=-2(-3)+8

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Solution for f(-3)=-2(-3)+8 equation: 



f(-3)=-2(-3)+8

We move all terms to the left:

f(-3)-(-2(-3)+8)=0

We add all the numbers together, and all the variables

f(-3)-14=0

We multiply parentheses

-3f-14=0

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

-3f=14

f=14/-3

f=-4+2/3

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