when 8 is subtracted from a certain number and the result is multiplied by 3 the final answer is 21. What is the original number

Mathematics

2 answers:

Bingel [31]2 years ago

6 0

Answer: The original number is 15.

Step-by-step explanation:

LuckyWell [14K]2 years ago

6 0

Answer:

Step-by-step explanation:

(x-8)*3=21

x-8=21/3

x-8=7

x=7+8

x=15

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