Question

By what number should ( -5)(-1) be multiplied so that the product may be
equal to (10)(-1)

Answer 1

Answer:

suppose that the number is X

X(-5)(-1)=-10

X=-2

Answer 2

(-5)(-1)=5

(10)(-1)=-10

let the no it should be multiplied be x

Then,

5x=-10

x=-10/5

x=-2

it should be multiplied by -2