Question

By what number should (5)power -1
be multiplied so that the product may be equal to (-7) to power -1​

Answer 1

Answer:

5/7

Step-by-step explanation:

Let the number be x

A.T.P.

(5)^(-1) * x = (7)^(-1)

(1/5) * x = 1/7

x = (1/7)*5 = 5/7