nr necuniscur folosind metida mersului invees c-34243+22222-13432=28805

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Grade: Education Subject: matematica
nr necuniscur folosind metida mersului invees c-34243+22222-13432=28805
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c-34243+22222=28805+13432    c-34243+22222=42237   c-34243=42237-22222=20015    c=20015+34243   c=54258