Question

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

Answer 1

Answer:

Let the number be x.

According to the question,

x×(−5)−1=(−8)−1

x×−51=−81

x×51=81

x=85

Step-by-step explanation:

Solution. (−7)−1 = −1/7 (using the property a−1 = 1/a). Hence, 5−1 should be multiplied by −5/7 to obtain (−7)−1.