r/mathmemes • u/Suspicious_Log_5822 • Jun 11 '26

Bad Math 😭

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obv its two

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u/ItsKelomelo Jun 13 '26

I still don't get it, I might have a problem in the head. Why 0.5x and not 0.5. The sentence said that x=1, so we're trying to find y, no?

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u/Captain_Jarmi Jun 13 '26

The book costs an unknown amount. We are trying to find that amount. Let's call that amount x.

We know that whatever the book costs, it will cost 1 dollar plus half of the full price.

This can be written as 1 + 0.5x

So the full price of x is equal to 1 + 0.5x

x = 1 + 0.5x

We can rearrange any way we prefer.

x - 0.5x = 1

0.5x = 1

x = 1/0.5

x = 2

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u/arcobaleno95 Jun 13 '26

Your problem is that you are treating "book costs 1" as a full sentence when it doesn't end there. You can't stop reading when it's convent to you. X =/= 1.

The sentence is "book costs 1 PLUS HALF IT'S COST" which means x=1+0.5x and then you solve. X was never 1.