Răspunsuri

2014-06-15T22:32:16+03:00
D=92-c rezulta ca:
c x 2= (92-c) x 6
c x 2= 552- 6 x c
8 x c=552
c=69 de unde rezulta:
d=92-69
d=23
2014-06-15T22:43:13+03:00
Cx2=dx6
c/d=6/2
c/d=3
c=3xd
c+d=92
3xd+d=92
4xd=92
d=23
c=3x23=69