Reference fixture — not teaching material
This lesson exists to exercise the platform. It was not written by a subject-matter expert and has not been reviewed by one. Do not study from it.
The accounting equation
By the end: State Assets = Liabilities + Equity and explain why it cannot break.
Assets are what the business controls and expects to benefit from: cash, equipment, money owed to it by customers. Liabilities are what it owes to others: loans, unpaid bills, wages not yet paid. Equity is what is left for the owners once every liability is settled.
Read the equation as a sentence about the same pile of things, described twice. The left side asks what the business has. The right side asks who has a claim on it. Every asset was funded by somebody — either a creditor or an owner — so the two sides describe identical value from opposite directions. That is why the equation cannot break. It is not a rule anyone chose to enforce; it is an identity.
- The owner puts $8,000 of her own money in. Assets (cash) $8,000 = Liabilities $0 + Equity $8,000.
- The business borrows $5,000 from a bank. Assets (cash) $13,000 = Liabilities $5,000 + Equity $8,000.
- It buys a $3,000 floor machine with cash. Assets (cash $10,000 + equipment $3,000) $13,000 = Liabilities $5,000 + Equity $8,000.
Look at the third line. Total assets did not change — $3,000 of cash simply became $3,000 of equipment. Many transactions work this way: value moves between accounts without changing the totals. Others, like the loan, increase both sides at once. What never happens is one side moving on its own.