Answer:
Assets = Liabilities + Equity
cash land bonds payable retained earnings
2018 500,000 500,000
2018 -500,000 500,000
2018 125,000 125,000
2018 -70,000 -70,000
55,000 500,000 500,000 55,000
2019 125,000 125,000
2019 -70,000 -70,000
110,000 500,000 500,000 110,000
Revenue - Expenses = Net income
2018 0 0 0
2018 0 0 0
2018 125,000 0 125,000
2018 0 70,000 -70,000
125,000 70,000 55,000
2019 125,000 0 125,000
2019 0 70,000 -70,000
125,000 70,000 55,000