 
<translate> Bayyana tsarin tunani mataki-mataki sannan kuma amsar karshe. Randy ya ci biskit guda 32. Mahaifinsa ya ba shi biskit 13 a matsayin kyauta. Mahaifiyarsa ta ba shi biskit guda 15. Ɗan'uwan Randy ya ci 20 daga cikin waɗannan biscuits. Biskit nawa ne suka rage wa Randy? <eng> Give the step-by-step reasoning process and then the final answer. Randy had 32 biscuits. His father gave him 13 biscuits as a gift. His mother gave him 15 biscuits. Randy’s brother ate 20 of these biscuits. How many biscuits are Randy left with? 