Use the following information as of December 31 to determine equity.
Liabilities $141,000
Cash $57,000
Equipment $206,000
Buildings $175,000

First you need to add your assets together i.e. cash, equipment, and buildings.

Since the accounting equation is:
Assets = Liabilities + Owners Equity so you can rearrange the formula to:
Owners Equity = Assets - Liabilities

So input your Assets and Liabilities amounts and solve for Owners Equity.