Răspunsuri

2014-10-16T22:34:26+03:00
Numarul ales de tine este 44?
2014-10-16T22:35:11+03:00
[(a+5)·2-10]:7=14
(a+5)·2-10=7·14
2a+10-10=98
2a=98
a=98/2
a=49
veriicare
[(49+5)·2-10]:7=14
(54·2-10):7=14
98:7=14
20 4 20