Accounting & bookkeeping
Accounting Equation: Trace Assets, Liabilities and Equity
The accounting equation is Assets = Liabilities + Equity. Use it to trace how an event changes resources and their financing, not as a rule that every cash receipt is revenue. An expanded view of equity separates owner investment from income and expenses.
State the fictional model
Start an original teaching business at zero. Use an owner-investment model, no tax or depreciation, and treat the service as completed and the stated current expense as consumed. Equipment purchased below remains an asset in the exercise. All figures are currency units.
OpenStax presents the basic equation and an expanded equity view. The table uses whole-company category totals rather than journal account balances, so it is a different practice task from constructing debit and credit entries.
Work through all six events
For each event, predict the new category totals. The equipment purchase changes asset composition without changing total assets.
Original event table: assets | liabilities | equity
1. Owner invests 5,000 cash: 5,000 | 0 | 5,000.
2. Buy 600 unused supplies on account: 5,600 | 600 | 5,000.
3. Buy equipment for 1,200 cash: 5,600 | 600 | 5,000; cash falls and equipment rises by the same amount.
4. Earn and receive 900 for completed work: 6,500 | 600 | 5,900.
5. Pay 200 for a current consumed expense: 6,300 | 600 | 5,700.
6. Pay 250 of the supplier balance: 6,050 | 350 | 5,700.
Final check: 6,050 = 350 + 5,700.
Explain the expanded equity calculation
Final equity is 5,000 owner investment + 900 revenue − 200 expense = 5,700. The supplier settlement does not create another expense in this model; it reduces a liability already recorded. Treating every cash outflow as an expense would incorrectly reduce equity again.
The equipment event is also not an immediate reduction in total assets here. It exchanges 1,200 cash for 1,200 equipment. The equation captures that total even though a cash-only view would show a decrease. No depreciation calculation is part of the supplied period.
Give a complete short explanation
A good explanation names both the change and the unchanged element.
Original practice answer
“After the supplier payment, assets fall from 6,300 to 6,050 and liabilities from 600 to 350. Equity stays at 5,700 because this payment settles an existing obligation rather than recording another expense.”
Do not confuse equality with a complete report
The table is a category model, not a full financial statement or a test of whether every transaction exists. A completely omitted event can leave the equation balanced. A mislabeled asset or expense can also require analysis beyond category equality.
Change the final payment to 300 and check the revised totals: assets become 6,000 and liabilities 300, while equity remains 5,700. Explain why before doing the arithmetic. That keeps the meaning of the event ahead of the formula.
Questions, answered
Does every cash payment reduce equity?
No. The equipment exchange and supplier settlement have different effects under these stated facts.
What does the expanded equation explain?
It separates the 5,000 owner investment, 900 revenue and 200 expense that make final equity of 5,700 in this stated model.
Sources and examples
ResumizeAI team. Examples are fictional teaching material, not customer results. Replace sample details with your own facts.
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