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A certain number was divided my 3; 3 was added to to the result. the final answer is 8. what is the number?​

User Tim Maxey
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2 Answers

14 votes
14 votes

Answer: The number is 15.

Step-by-step explanation: We are given a certain number we don't know about. Since it's value is unknown it is a variable. We'll call this variable "x". That number, x, is divided by 3, and then 3 was added to x to make 8. So then if x = 15, then dividing it by 3 would make 5, and adding 3 to that would make 8.

Another way to solve this, or check your work, is to work the problem out in reverse. Starting with the number 8, subtract 3 and then multiply that number by 3. This will give you the number 15. Which shows that the answer is correct.


((15)/(3)) + 3 = x


5+3= x


8=x


x=8


3(8-3) = x


3(5) = x

or


24 - 9 = x


15 = x


x=15

Thus the number is 15. Hope this helps, and have a great day!

User RoberRM
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16 votes
16 votes

Answer:

the number is 15

Explanation:

if you fix it into the equation, you'll get 15 divided by 3 which is 5 then plus 3 which will give you 8

A certain number was divided my 3; 3 was added to to the result. the final answer-example-1
User Kyle Yeo
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2.8k points