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peno211

peno211

19.09.2019 •

Mathematics

Given f(x) = 9, find x if f(x) = -3x – 3.

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Ответ:

kelsey152

03.01.2022

Question:

f(x)=9 , f(x)=-3x-3

Solution:

When f(x) is equal to 9 that means f(x)=-3x-3 is equal to 9 too which you can solve by:

$9=-3x-3\\ 9+3=-3x-3+3\\ 12=-3x\\\frac{12}{-3}=\frac{-3x}{-3}\\-4=x$

x=-4

Check:

$-3(-4)-3\\-12-3\\=9$

Hope this was helpful.

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Ответ:

justhereforanswers13

17.11.2022

What are you supposed to do here

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