Add three a minus two B, equal to 75, add three B minus two a, equal to 5, how much is a and B?

Add three a minus two B, equal to 75, add three B minus two a, equal to 5, how much is a and B?

3A-2B=75
3B-2A=5
A + B = 80
By subtracting the two formulas, 5a-5b = 70, A-B = 14
So a = (80 + 14) △ 2 = 47
B=(80-14)÷2=33