Hello guys I would love if you guys can help me out

Answer:
12 + 13 + a = 40
if you need to find out A you would add 13 and 12 then do 40 - 25 to find a
Answer:
2 + 13 + A = 40
Step-by-step explanation:if you need to find out the letter A you would add 13 and 12 then do 40 - 25 to find the letter A