Question

5v-4/10=4/5 (please show work)

Answer 1

multiply both sides by 10 to cancel the ten in the denominator. so you'll have 5v-4 = 8
then add 4 to both sides, so you will have 5v = 12, then divide both sides by 5 so v = 12/5

Answer 2

you start by multiplying both sides by 10

Answer 3

(5v-4)5=4*10
....25v-20=40
....25v=40+20
....25v=60
....v=60/25
.....v=2.4