Răspunsuri

2014-10-28T17:31:31+02:00
A = 9
b = 4a = 9 x 4 = 36
c = 7a = 9 x 7 = 63
d = 1000 - a - b -c 
d =1000 - 36 - 63  - 9
d = 892

2014-10-28T17:35:20+02:00
A=9
b=9x4
b=36
c=7x9
c=63
9+36+63+d=1000
108+d=1000
d=1000-108
d=892
9+36+63+892=1000