Question

12v+14+10v=80 combine Like terms again

Answer 1

12v+10v = 80-14
24v=64
64÷24=2.6(recurring)

Answer 2

well 12v and 10v are like terms so combine them.
22v+14=80
If you are trying to solve the full equation it would look something like this:
22v+14=80
22v=56
22v=56
22
v=2.54