Reorder the terms in parentheses
+(+0.2v-1)=-1
Remove unnecessary parentheses
+ 0.2v-1=-1
We move all terms containing v to left and all other terms to the right
+ 0.2v+=-1+1
We simplify left and right side of the equation
+ 0.2v=0
We divided both sides of the equation by 0.2 to get v
v=0
