Answer:
v=7
Explanation:
Hope this helps!
edit:
When -19v = -133, you have to get v alone.
This means you have to remove the -19 from the front of the v
To do this, you divide by the -19(the coefficent)
When you divide, you must divide from both sides, and thus you will get:
The negative signs cancel out, and result in
From there, you just calculate it and you get 7.
:3