Răspunsuri

2014-07-28T19:26:25+03:00
D=2×a; d-16=a+16;2a-16=a+16=》2a-a=32=》a=32=》d=32×2=64
2014-07-28T19:27:52+03:00
D=2×a; d-16=a+16;2a-16=a+16=》2a-a=32=》a=32=》d=32×2=64