Question

If f(x) = x-9, find f(x) - f(-x).
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Answer 1

Answer:

your answer is x 3

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

x-9-(-(x-9))=0

x-9+x-9=0

2x-18=0

2(x-9)=0

x-9=0/2

x-9=0

x=+9