droblesa13 droblesa13
  • 21-08-2018
  • Mathematics
contestada

5y-9=16 guess and check

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Shinrinyoku
Shinrinyoku Shinrinyoku
  • 21-08-2018
5y - 9 = 16

add 9 to both sides leaving us with
5y = 25

divide both sides by 5
5 / 5 = 1y
25 / 5 = 5
therefore

y = 5


(What you do to one side, you do to the other).
Answer Link
milkshake14
milkshake14 milkshake14
  • 21-08-2018
The answer is y=5, but you may need to work it out and show your work
Answer Link

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