Answered

Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Connect with a community of experts ready to provide precise solutions to your questions on our user-friendly Q&A platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

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


Sagot :

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