Math comic challenge

i+j-:=y

this was last year and some context:
it was a retake
and im only good at math when it involves programming, which in turn actually made me better at math in my earlier years

bro i bought i ti 83+ for $108 and you got that for 25 dollars?
:sob:

I got my TI-84 + CE Python for around $120

Same here.