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Find a Number Such That When 15 is Subtracted From 7 Times the Number, the Result is 10 More Than Twice the Number.

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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.

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