Answer :

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

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