Question

Brandon has saved $75.He goes to hot topic to buy a belt that costs $18 and some graphic t-shirts that cost $24 each.

Answer 1

I think i know what you are trying to ask.
the equation will be:
18+24x=75
You want to know how many t-shirts you can buy
18+24x=75
-18         -18
24x= 57
/24     /24
x=2.375 ~ 2
So he can only buy 2 t-shirts

Answer 2

well 2 is ht answer if that's what you were trying to ask