[GNC] Can someone tell me how A-L=Eq+(I-Ex) is correct?

[W. Neal Lewis]

Stan,

Correction made.

Tehachapi Loop is one of the great Civil Engineering feats of this world 
and well worth coming to see.

Thanks for building the observation platform. You have the thanks of a 
great many people.

Best regards,

Neal Lewis

On 8/31/22 1:42 PM, Stan Brown wrote:
> Sure thing! If you have followups about Gnucash please send them to the mailing list so that everyone can benefit (or offer corrections if needed).
>
> I agree about the Loop, and we get a fair number of international visitors. We recently built a concrete and wood observation platform overlooking it, so you no longer have to just stand on the shoulder of the road.
>
> --
> Regards,
> Stan Brown
> https://Brownmath.com
> http://oakroadsystems.com
>
> On Tue, Aug 30, 2022, at 7:08 PM, W. Neal Lewis wrote:
>> Thank you Stan,
>>
>> Let me study what you have said and let it soak in. It is good information.
>>
>> Thank you,
>>
>> Wm. Neal Lewis
>> Newton, Kansas
>> Industrial & Systems Engineer
>>
>> P.S. Techachapi is a beautiful place and has one of the great Civil
>> Engineering wonders of the world, "The Techachapi Loop" Many years ago I
>> got to watch trains crossing over themselves. Quite an awesome sight. WNL
>>
>> On 8/29/22 3:05 PM, Stan Brown wrote:
>>> I agree with what Michael or Penny wrote, but I'm going to post anyway
>>> because seeing it described in slightly different ways may be helpful
>>> for the original questioner.
>>>
>>> On 2022-08-28 15:38, W. Neal Lewis wrote:
>>>> However, although (A+L)=Eq, (A+L)≠Eq+(I+Ex). I have added a term to the
>>>> right side that is most decidedly not on the left ∴ they cannot be equal.
>>>> ∴ A and L must be terms that include other factors.
>>> First off, it's assets MINUS Liabilities, not plus, and the same for
>>> Expenses. If you have a $500,000 house and a mortgage balance of
>>> $150,000, with no other assets or liabilities. your net worth (Equity)
>>> is not $500,000+150,000 = $650,000; it's $500,000-150,000 = $350,000.
>>>
>>> Secondly, your two equations assume different conditions. The more
>>> general equation
>>>           Assets - Liabilities = Equity + Income - Expenses
>>> is always valid, so that's probably the one to think about until it's
>>> second nature.
>>>
>>> But what happens if(*) you "close the books"? This means to total up the
>>> year's or month's income and expenses, post the total net income or net
>>> loss into an Equity account such as Retained Earnings, and zero out all
>>> the income and expense accounts. GnuCash has a menu item to perform this
>>> closing for you. Since all income accounts and all expense accounts have
>>> zero balances right after closing the books, the general equation
>>> reduces to
>>>           Assets - Liabilities = Equity
>>>
>>> (*) I say _if_ you close them, because there's no requirement to do so
>>> in GnuCash. Some people including me like a fresh start each year;
>>> others don't.
>>>
>>> But that shorter equation is always valid, even when there are nonzero
>>> income and expense account balances, if you interpret "Equity" in a more
>>> general way. GnuCash actually does this for you when you run a balance
>>> sheet.
>>>       It adds up all income account balances and subtracts all expense
>>> account balances, obtaining your net income or net loss to date. That
>>> total is shown in the Equity section of the balance sheet as Retained
>>> Earnings.
>>>       GnuCash doesn't change any account balances, and the computed
>>> Retained Earnings don't get posted to any actual account in your
>>> database; it's purely a rollup of the income and expense balances rather
>>> than showing them individually on the balance sheet. If we interpret
>>> Equity as "all equity accounts plus the net income (or minus the next
>>> expense) since the books were last closed",(**) then once again you have
>>>           Assets - Liabilities = Equity
>>>
>>> (**) This might seem like cheating, but it's not. All income and expense
>>> amounts are logically part of your net worth, as the following example
>>> will show.
>>>
>>> Suppose you have earned $90K salary so far this year and spent $76 K of
>>> it in food, clothes, and so forth. You still have a $500 K house with
>>> $150 K mortgage.
>>>
>>> Assets: $514 K ($500 K house, plus the $14K part of your salary that's
>>> still in your in a bank account)
>>> Liabilities: $150 K (mortgage balance)
>>> Equity: $365 K (The $350 equity in your house, plus your $90 K in salary
>>> income, minus your $76 K in expenses)
>>>
>>> Once again, Assets - Liabilities = Equity: $514 K - $150 K = $364 K.
>>>
>>> Suppose you want a balance sheet that doesn't roll net income or expense
>>> into Retained Earnings, but shows the individual account balances? That
>>> is called a Trial Balance, and GnuCash can create such a report for you.
>>> Or of course you can run a Balance Sheet for the desired date and an
>>> Income Statement (Profit and Loss statement) for the period starting the
>>> day after the books were closed and ending the date of the Balance Sheet.
>>>
>>> Stan Brown
>>> Tehachapi, CA, USA
>>> https://BrownMath.com
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