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  • 14-11-2022
  • Mathematics
contestada

y = 7 x − 7 z − 9; solve for x
Answer choices:
A) x = (y-7z-9)/7;
B) x = (y-z-9)/7;
C) x = (y+z+9)/7;
D) x = (y+7z+9)/7

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