Răspuns :
Răspuns:
9+8x[7+6x5+6x4xa]=881
9+8x[7+30+24xa]=881
9+8x[37+24xa]=881
9+8x37+8x24xa=881
9+296+192xa=881
305+192xa=881
192xa=881-305
192xa=576
a=576/192
a=3
Răspuns:
9+8x[7+6x5+6x4xa]=881
9+8x[7+30+24xa]=881
9+8x[37+24xa]=881
9+8x37+8x24xa=881
9+296+192xa=881
305+192xa=881
192xa=881-305
192xa=576
a=576/192
a=3