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## Explanation

- Find a number when 15 is subtracted from 7 times the number.

- The result is 10 more than twice the number.

Supposing number is “y”.

7y – 15 (when 15 is subtracted from 7 times the number).

2y + 10 (result is 10 more than twice the number).

So, 7y – 15 = 2y + 10

Through this equation we can easily figure out the value of “y” (y = 5 answer).

## To Find

Number = ?

## Solution

Let suppose

Required number = y

According to the given condition;

7y – 15 = 2y + 10

7y – 2y = 25

5y = 25

**y = 5 answer**

## Conclusion

Find a number such that when 15 is subtracted from 7 times the number, the result is 10 more than twice the number. The number is 5.