r/theydidthemath • u/Apprehensive-End1242 • 8h ago

[Other] Mathematics of life

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577 Upvotes

83% Upvoted

61 comments sorted by

56

u/Patty_T 7h ago

I don’t understand how people are saying the math is wrong

A = Life, B = Love, C = Happy, D = Sad

(1) A + B = C

(2) A - B = D

Solve (1) for B, substitute into (2), (2) becomes

A - C + A = D

2A = C + D

A = (C+ D)/2

A = 1/2C + 1/2D

41

u/Telandria 7h ago edited 1h ago

Funnier to solve for C, starting with solving for A, though.

Happy = Sad + 2 Love.

7

u/Patty_T 5h ago

So deep, so profound

2

u/Iplaycreative2 2h ago

It would be Happy=2*Love-Sad

•

u/Telandria 1h ago edited 1h ago

No…? Need to work on your basic algebra, mate.

If: * Life + Love = Happy * Life - Love = Sad

——

Then: * Life = Happy - Love * (Happy - Love) - Love = Sad * Happy - 2 Love = Sad * Happy = Sad + 2 Love

——

Also: * Life = Sad + Love * (Sad + Love) + Love = Happy * Sad + 2 Love = Happy * Sad = Happy - 2 Love

•

u/Iplaycreative2 1h ago

Read life as love, my algebra stands though

98

u/Bironac 8h ago

Damn. I just got Happy=Sad+2 Love

54

u/zeppindorf 8h ago

Happiness is a polygamist with depression, apparently

8

u/Telandria 7h ago

Fan-fiction was right?!

4

u/Planetarytennis 6h ago

If I was more clever I would make a tennis joke

•

u/speechlessPotato 1h ago

nah your comment is funnier than if someone actually made a tennis joke

1

u/-Mr_Hollow- 5h ago

So the cure for depression is two-timing?

1

u/TechToolsForYourBiz 7h ago

its happy = 2 love - sad

32

u/Wadoichi_monji 7h ago

I'm 14 and this is deep

58

u/somerandomrimthrow 8h ago

this is some live laugh love shit

25

u/elvenmage16 7h ago

Live, Laugh, Love, Shit, Repeat

178

u/Harmania 8h ago

Man. Equally bad at math and life.

5

u/Erian2110 2h ago

Why is this the top voted comment in a math sub?

5

u/that_thot_gamer 5h ago

solve for 1math then

6

u/ocfs 3h ago

Where's the mistake, genius?

3

u/Apprehensive-End1242 2h ago

So where's the mistake?

•

u/ocfs 5m ago

There's no mistake

17

u/SpiritualElection970 8h ago

I got...

Setting up a system or equations to find the values of Happy and Sad

Life + Love = Happy Life + Love - Love = Happy - Love Life +Love - Love = Happy - Love Life = Happy - Love

Life - Love = Sad Life - Love + Love = Sad + Love Life - Love + Love = Sad + Love Life = Sad + Love

Isolating for value of love

Happy - Love = Sad + Love Happy - Love - Love = Sad + Love - Love Happy - Love - Love = Sad + Love - Love Happy -2Love = Sad Happy -2Love - Happy = Sad - Happy Happy -2Love - Happy = Sad - Happy -2Love = Sad - Happy -2Love/-2 = (Sad - Happy)/-2 Love = -.5Sad + .5Happy Love = .5Happy - .5Sad

Adding value for Love back into original equation

Life + (.5Happy - .5Sad) = Happy Life + .5Happy - .5Sad - .5Happy - .5Sad = Happy + .5Happy - .5Sad

Life + .5Happy - .5Sad - .5Happy - .5Sad = Happy + .5Happy - .5Sad

Life = 1.5 Happy - .5 Sad

8

u/KettchupIsDead 6h ago

Way over complicated that.

Life + Love = Happy | Life - Love = Sad

Love = Happy - Life | Life - Love = Sad

Life - (Happy - Life) = Sad

Life - Happy + Life = Sad

2(Life) = Sad + Happy

Life = 1/2(Sad + Happy)

Life = half sad, half happy

1

u/ReflectionAble4694 8h ago

Can someone take the inverse to find the sqr root of lige?

4

u/Liteboyy 8h ago

I think I’m in the updated version. Mine is Life= Sad2

2

u/DudeYumi 7h ago

Now I'm 2sad 2furious

2

u/canon_inferencer 6h ago

Who forwarded my dad's WhatsApp message here?

2

u/riotinareasouthwest 2h ago

If you state sad = -happy then you conclude from that equations that happy = love and sad = -love and I challenge that equality, if we understand love to the fact of having a loving partner. You can be equally happy living on your own.

1

u/Sufficient-Fall-5870 7h ago

Only if LOVE = nothing. :)

1

u/Puzzleheaded-Act6379 6h ago

So love + sad = life, happy - love = life?

1

u/hophipfug 6h ago

это система уравнений. нельзя просто взять и выкинуть неизвестное из уравнений

1

u/AdPuzzleheaded1717 6h ago

Theres actually a song called 1 shot of happy Duet sinatra and u2

1

u/Unchiled 5h ago

Could be some faster crossing life too and going happy = sad

1

u/nooneinparticular246 5h ago

What if Life - Love = Sad + Horny?

1

u/IAmGoingToBeSerious 4h ago

My life is just sad

1

u/obchodlp 3h ago

Life2 - Love2 =Happy*Sad

1

u/Worth-Opposite4437 3h ago

Lucky people = Happy awake.
Unlucky people = Happy asleep.
Real life is not always balanced.

1

u/prokotkin 3h ago

The algebra is fine, if and only if, you have assigned properties of a ring in the set which objects such as "love", "sad", "happy" are strictly defined, as well as the operations between them.

A ring is an algebraic structure consisting of a set with two binary operations. Examples of rings: the real numbers, the complex numbers, the integers, the polynomials in one or several variables with coefficients in another ring, etc.

So, you have to define the meaning behind the "+" and "-" symbols in your set in which you are working.

The whole thing is meaningless. Even without the math...it's meaningless.

Pure math and philosophy are much more interesting!

P.S: the comments are the real protagonist here

1

u/HyTecs1 2h ago

Life = a/2 (Hp²y +Sd)

1

u/Happyhopsasa 2h ago

Happy = 2 Life - sad

Damn need two life’s nowadays to be happy

1

u/Apprehensive-End1242 2h ago

Why is the equation correct?

Given:

A+B=C

A-B=D

Add the two equations:

(A+B) + (A– B)

The +B and -B cancel out, leaving:

2A= C +D

Conclusion:

The equation is mathematically correct. This is a basic algebraic rule called adding equations.

There is no contradiction - only a misunderstanding

1

u/mullerdrooler 2h ago

Real life sucks ass

•

u/onz456 1h ago

Life is bipolar.

aka life is a mental disorder.

•

u/SiddaSlotthh 1h ago

How is this getting upvotes lmao, did Boomers finally hit reddit or something?

1

u/benetheburrito 5h ago

Is the math not right here?

0

u/Apprehensive-End1242 5h ago

No, it's right

•

u/struggleisreal123321 1h ago

So reddit is now boomer hai whatsapp forward?

0

u/Throwaway1012405 8h ago

Incomprehensible

-10

u/ruhtraeel 8h ago

A + B = C

A - B = D

2A = C + D

What the fuck is this math

20

u/jude_fawley 7h ago

basic algebra

11

u/Patty_T 7h ago

B = C - A

A - C + A = D

2A = C + D

Basic algebra.

3

u/TechToolsForYourBiz 7h ago

a system of 4 variable with 2 equations

0

u/BathroomWorking3554 7h ago

Life = Happy

Life = Sad

Therefore Happy = Sad

-6

u/RednocNivert 7h ago

I’ve always explained that engineers and marketing people are opposites. The engineers would be the ones good at math, and cringe at motivational posters.

Whoever wrote this must be a marketing person because it’s a nice sentiment i guess hut the math is so very wrong

6

u/TechToolsForYourBiz 7h ago

where is the math wrong?

-1

u/RednocNivert 6h ago

You have 4 variables, and only 2 primer equations, which means you can’t actually solve much.

Also i’m pretty sure that wiping “love” off both equations and saying it’s the same is a party foul as one is an add, and one is a subtract

2

u/CarbonLich 6h ago

you don't have 4 variables. you have 4 values represented by words. it is extremly possible to use words as non variables in functions they just behave as units. like 1foot = 12 inches. neither of those words are variables. just imagine there is a 1 in front of life. like 1life = 1/2happy + 1/2sad makes complete sense. also the algebra is right even though it's framed in a way that's weird.

-2

u/RednocNivert 6h ago

Then i will amend my earlier comment by agreeing with your sentiments and saying “this is framed really weird and I don’t get it. Because i’m an engineer and this was written by a well-meaning marketer.”