Question

by what number should 4 upon 7 be multiplied so that the product is -2​

Answer 1

Answer:

Let that number is x

Now, x * (5/7)-5 = 1

=> x/ (5/7)5 = 1 {since a-1 = 1/a}

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

=> x = (5/7)5

So, the number is (5/7)5

Answer 2

Answer:

-7/2

Step-by-step explanation:

let the no be x

according to question

4/7*x = -2

X= -2*7/4

x= -7/2