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Afla numărul natural x care verifica egalitatea (x+20) - 120:6x10=1.000. Rogg ajutor!!!

Răspuns :

(x+20)-120:6x10=1000
(x+20)-20x10=1000
(x+20)-200=1000
x+20=1000+200
x+20=1200
x=1200-20
x=1180