20+4v=-5(-4-6v)
mutiply the bracket by -5
(-5)(-4)= 20
(-5)(-6v)= 30v
20+4v= 20+30v
move 4v to the other side
20+4v-4v= 20+30v-4v
20= 20+26v
move 20 to the left side
20-20= 20-20+26v
0= 26v
divide both sides by 26 to get v by itself
0/26= 26v/26
answer:
v= 0