Răspunsuri

2014-11-11T10:03:52+02:00
A + b = 432
a - b =216
a = 216 + b
216 + b + b = 432
2b = 432 - 216 = 216
b = 216 : 2 = 108
a = 216 + 108 = 324
2014-11-11T10:04:24+02:00
432- 216=216 (2b)     216:2=108 (b)    432 - 108=324 (a)