What is x when 31 divided by x equals 21?

In other words, what would the divisor be if the dividend were 31 and the quotient 21?

To find the answer, just divide the dividend by the quotient: 31 ÷ 21 = 1.4761904761905

To prove this, let's compute 31 divided by 1.4761904761905: 31 1.4761904761905 = 21

How does it work?

Asking what the value of x could be when 31 divided by x gives a result of 21, is equivalent to solving the following equation:

31 x = 21

  1. Multiply both sides by x: 31 x x = 21 x
  2. 31 x x is equivalent to x x × 31 , which simplifies to 1 × 31 (or just 31 ).
  3. Thus, the equation becomes: 31 = 21 x
  4. To find x, divide both sides by 21: 31 21 = 21 x 21
  5. Which gives, after simplification: 1.4761904761905 = x (or x = 1.4761904761905 )

So, if the dividend is 31 and the quotient is 21, the divisor is 1.4761904761905.