Question

-1/19 multiply by 19=19 multiply by -1/19

Answer 1

YAH!!!

As we know that a×b=b×a

Example:

2×3=3×2

Solve

6=6

That is the  commutativre property of multiplication....

In the same way

-1/19×19=19×-1/19

Since

-19=-19

Is the answer

I think ur answer is done...

Hope  it helps