Answered

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Translate into an equation and solve.
Twenty-one is three times the difference between three times a number, n, and five.

Sagot :

Panoyin
21 = 3(3n - 5)
21 = 3(3n) - 3(5)
21 = 9n - 15
+15       +15
36 = 9n
 9      9
  4 = n
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