Ignore what the kit did, do you have past papers, they’ve the right treatment of payables…
translate dinars in to dollars at year end cos they are monetray items, 380/5 = 70 thats purchase of PPE 280/4.9 = 57 , this is what you’ve paid from bank 100/4.8 = 20.83 approx 21 this is your liability i.e. increase in payables the exchange loss is 2, that arose because of the translation of the currencies
so now when you make payables T account, the balancing figure would be 86