Question

6
9. If (-7)-'is multiplied by a number, the product obtained is
(6/7)-'.what is the number?​

Answer 1

Answer:

Let the number be xThen

(−7) −1

×

x=

(

7

6

)

−1

⇒ −

7

1

× x=

6

7

⇒ x=

6

7

× −7

⇒ x=

−

6

49