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elixir [45]
2 years ago
10

Translate the following sentence into an equation using n for the unknown number. Then solve for n. when 15 is decreased by thre

e times a number, the result is 21 a. 15 minus 3 n = 21. n = negative 2. b. 3 n minus 15 = 21. n = negative 2. c. 3 n minus 15 = 21. n = 12. d. 15 minus 3 n = 21. n = 2. Please select the best answer from the choices provided A B C D
Mathematics
1 answer:
saw5 [17]2 years ago
5 0

Answer:

n=-2,A

Step-by-step explanation:

15-3n=21

-3n=21-15

-3n=6

n=6/-3

=-2

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