Respuesta :

add 7 to the other side.
-13+7=-h
-6=-h
divide by -1
6=h
ChaDendup

Answer:

-h = -6

Explanation :

- 13 = -h - 7

7 - 13 = - h

- 6 = - h

Check :

- 13 = - 6 - 7

-13 = - 13