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determinati numerele naturale x stiind ca x-5:5=5x5. va rog cat mai repede

Răspuns :

x-5÷5=25
x=25+5÷5
x=26

Verificare :
26-5÷5=5×5
26-1=25
x-5:5=25
x=25+5:5
x=26
Proba :
26-5:5=5*5
26-1=25