Răspunsuri

2014-04-14T15:39:12+03:00
A-b=61.2
a=3b
3b-b=61.2
2b=61.2
b=30.6

a=30.6*3
a=91.8

VERIFICARE:
91.8-30.6=61.2 ADEVARAT
2014-04-14T16:36:15+03:00
a-b=61,2 ---> 3b-b=61,2 ; 2b=61,2
a=3b                               b=30,6 => a=3x30,6=91,8