Răspunsuri

2014-10-01T11:34:35+03:00
(16+24)+x=16+(24+x)
40+x=16+24+x
40+x=40+x ADEVARAT => x poate fi orice nr din multimea R
2014-10-01T11:55:48+03:00
(16+24)+x=16+(24+x)
40+x=16+24+x
40-16+x=24+x
24+x=24+x