Răspunsuri

2014-04-27T09:49:48+03:00
Inlocuiesti in prima relatie p si obtii 2m - 12 +m=120 de unde rezulta 3m=132; m=44
p=2*44-12=88-12=76
2014-04-27T10:02:43+03:00
P+m=120
p=(2*m)-12

(2*m)-12+m=120
2m-12+m=120
3m=120+12
3m=132
m=132:3
m=44

p=2*44-12
p=88-12
p=76