Răspuns :
I+t=559
T+A=600
I+A=531
I+2T+A=1159
531+2T=1159
2T=1159-531
2T=628
T=628:2
T=314
I_t=559
I+314=559
I=559-314
I=245
T+a=600
314+A=600
A=600-314
A=286
I+a=531
245+286=531
T+A=600
I+A=531
I+2T+A=1159
531+2T=1159
2T=1159-531
2T=628
T=628:2
T=314
I_t=559
I+314=559
I=559-314
I=245
T+a=600
314+A=600
A=600-314
A=286
I+a=531
245+286=531
I+T=559
T+A=600
I+A=531
559+600+531=1690
I+T+A=1690÷2=845
845_559=286 A
600-286=314 T
531-286=245 I
T+A=600
I+A=531
559+600+531=1690
I+T+A=1690÷2=845
845_559=286 A
600-286=314 T
531-286=245 I