Answer:
-51/21
The first step in this equation would be to add -2/3 to 1/7
-2/3 and 1/7 need to have the same denominator, which 7 and 3 both go into 21
-2/3 converted to have the denominator, you would have to times top and bottom by 7, so you then get 14/21
Then you want to get the 1/7 with a denominator of 21 also, so you would times top and bottom by 3, so you get 3/21
Now you add 14/21 to 3/21 to get 17/21
-1/3h=17/21
You want to times by the reciprocal of -1/3 which would just be -3/1 so,
17/21*-3/1= -51/21 which is already simplified
So your answer would be -51/21
To check your work you would plug in -51/21 in for h
Explanation: