leahxsmith16 leahxsmith16
  • 02-02-2021
  • Mathematics
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Given that 9x–4y = 20. Find y when x= -2

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Teebee13
Teebee13 Teebee13
  • 02-02-2021
9x-4y=20
9(-2)-4y=20
-18-4y=20
-4y=20+18
-4y=38
Y= -9.5
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