Răspuns :
1nr |---|
2nr |---|---|---|---|---|---|---|---|---|
|...............................|=64(dif.)
64:8=8-1nr
2nr=9x8=72
2nr |---|---|---|---|---|---|---|---|---|
|...............................|=64(dif.)
64:8=8-1nr
2nr=9x8=72
a-b = 64
a:b= 9
=> a = 9×b
9b-b = 64
8b= 64
b=8
=> a = 9×b => a = 9 × 8 => a= 72
a:b= 9
=> a = 9×b
9b-b = 64
8b= 64
b=8
=> a = 9×b => a = 9 × 8 => a= 72