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#letter x #cross mark #unknown variable #spot mark #wrong answer #phonetic x

🇽⬛️❓

#unknown variable #mystery code #redacted value #undefined term

🔍❓=💡

#solving #finding solution #unknown variable #problem solving #algebra

👨🇽

#placeholder name #mister x #man x #unknown variable #generic male

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#ai #lockheed a-12 #unknown variable #x æ a-12 meaning #grimes explanation #archangel 12

❓<📉

#unknown variable #less than #decreasing