By what number should `5^(-1)`be multiplied so that product may be equal to `(-7)^(-1)?`

Explanation

Let the number be `x` that should be multiplied with `(5)^-1` so that the product will be equal to `(-7)^(-1)`
`=> x xx (5)^-1``= (-7)^-1`
`=> x xx 1/5=(-1)/7`
`=> x =(-5)/7`

Therefore,`(-5)/7` is the number that should be multiplied with `(5)^-1`so that the product will be equal to `(-7)^(-1)`.