Răspuns :
a=8b+50
8b+50-b=330
7b=330-50
7b=280
b=280:7
b=40
a=8*40+50
a=320+50
a=370
8b+50-b=330
7b=330-50
7b=280
b=280:7
b=40
a=8*40+50
a=320+50
a=370
A-B=330
A:B=8 R 50
A=B*8+50
8B+50-B-330
7B=330-50
7B=280
B=280:7
B=40
A=40*8+50
A=370
A:B=8 R 50
A=B*8+50
8B+50-B-330
7B=330-50
7B=280
B=280:7
B=40
A=40*8+50
A=370