Quote:
Quoth naita:
(your use of equal signs as "execute" are a deadly sin to a mathematician by the way.)

Indeed. Read literally, the math in your OP contains a number of statements, one for each equal sign:
3 x 5 = 15 + 3
15 + 3 = 18 x 2
18 x 2 = 36 + 2
36 + 2 = 38
Of course, all of these but the last are incorrect.