human
Jerry paid off some of his debts. Two months ago, he paid $12 while last month, he paid $3 more. If his debt was $50 in all, how much does he still have to pay?
assistant
How much did Jerry pay last month? ** Jerry paid $12 + $3 = $<<12+3=15>>15 last month.
How much did Jerry pay in total? ** He paid a total of $12 + $15 = $<<12+15=27>>27 for two months.
How much does Jerry still have to pay? ** Therefore, Jerry still has to pay $50 - $27 = $<<50-27=23>>23.
#### 23