Wrong Decimal Subtraction

Text on the meme

Solve: 5.9 = x + 5.11 We have: 5.9 = x + 5.11 Subtract 5.11 from both sides: x = 5.9 − 5.11 x = −0.21 ✅ Answer: x = −0.21

What it means

A math problem asks to solve 5.9 = x + 5.11, and the displayed solution incorrectly subtracts the decimals as if they were aligned by their written digits, giving x = −0.21 instead of 0.79. The meme mocks confident but incorrect elementary math explanations and is shared as a reaction to obvious mistakes presented as correct answers.

Objects

black background / чёрный фон gray message bubble / серое сообщение white text / белый текст math equation / математическое уравнение decimal numbers / десятичные числа variable x / переменная x check mark emoji / эмодзи с галочкой social media interface / интерфейс социальной сети copy icon / значок копирования like icon / значок лайка