-(v-1)=-6v+16
We move all terms to the left:
-(v-1)-(-6v+16)=0
We get rid of parentheses
-v+6v+1-16=0
We add all the numbers together, and all the variables
5v-15=0
We move all terms containing v to the left, all other terms to the right
5v=15
v=15/5
v=3