Question

The product of two rational number is - 21 if one of them is - 7 find the other full answer​

Answer 1

let the other no. be x

now according to question,

-7x = -21

x = -21/-7

x = 3

Answer 2

3

Step-by-step explanation:

Given -

Product of two rational number is - 21

one of them is - 7

To find -

The other number

Solution -

Let the other number as x,

so,

product of two numbers = -21

=> product of x and - 7 = -21

=> x × (-7) = -21

=> x = - 21 / - 7

=> x = 21/7

=> x = 3

Hence the other number is 3.

hope it helps.