Seudónimo Seudónimo
  • 24-02-2021
  • Mathematics
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Can someone plz help me only if Yk how to do it !!!!

Can someone plz help me only if Yk how to do it class=

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shhshsjajwjw shhshsjajwjw
  • 24-02-2021
yes it’s correct because 9 is x and if you substitute you do 9 x -9 which gives you y and is -81
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