What is x when 51 divided by x equals 15?

In other words, what would the divisor be if the dividend were 51 and the quotient 15?

To find the answer, just divide the dividend by the quotient: 51 ÷ 15 = 3.4

To prove this, let's compute 51 divided by 3.4: 51 3.4 = 15

How does it work?

Asking what the value of x could be when 51 divided by x gives a result of 15, is equivalent to solving the following equation:

51 x = 15

  1. Multiply both sides by x: 51 x x = 15 x
  2. 51 x x is equivalent to x x × 51 , which simplifies to 1 × 51 (or just 51 ).
  3. Thus, the equation becomes: 51 = 15 x
  4. To find x, divide both sides by 15: 51 15 = 15 x 15
  5. Which gives, after simplification: 3.4 = x (or x = 3.4 )

So, if the dividend is 51 and the quotient is 15, the divisor is 3.4.