Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Two months ago, Wilson had a total of $150 in his bank account. Then last month, he deposited $17. A few days after, he made a withdrawal. This month, he deposited $21 so he has $16 more than what is in his account two months ago. How much did Wilson withdraw last month?

### Response:
 Wilson alikuwa na $150 + $17 = $<<150+17=167>>167 miezi miwili iliyopita kabla ya kufanya uondoaji.
Fedha zake kwenye akaunti yake sasa ni $150 + $16 = $<<150+16=166>>166.
Kwa kuwa alifanya amana ya $21 mwezi huu, hii inamaanisha kulikuwa na $166 - $21 = $145 mwezi uliopita baada ya kufanya uondoaji.
Hivyo, Wilson alitoa $167 - $145 = $<<167-145=22>>22.