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Rezolvati in multimea numerelor rationale ecuatia (1,25 + 3,75): x=1

Răspuns :

(1,25+3,75):x=1
x=1×(1,25+3,75)
x=1×5
x=5
S={5}
hOi,

(1,25+3,75):x=1
5:x=1
x=5:1
x=5

Succes !