Best emojis for variable✖️❌❎〽️

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✖️

x, multiplication, times, math, calculation, cross, variable

❌

x, no, disapprove, incorrect, wrong, close, cancel, not, error, bad, ban, don't, reject, stop, cons, drawbacks, disadvantages, quit, delete, remove, deny, false, fault, variable, clear, disable, dismiss, mistake

❎

cross mark button

x, no, incorrect, wrong, close, cancel, variable

〽️

part alternation mark

music notation, M, change, spectrum, fluctuate, variable