Răspuns :
a+b= 98
a-b=82 => a= 82+b
82+b+b = 98
82 + 2b = 98
2b = 98 - 82
2b = 16
b = 16 : 2
b = 8
a = 8+82
a = 90
a+b=98
a-b=82
a=b+82
b+82+b=98
2b+82=98
2b=98-82
2b=16
b=16:2
b=8
a=8+82
a=90
a+b= 98
a-b=82 => a= 82+b
82+b+b = 98
82 + 2b = 98
2b = 98 - 82
2b = 16
b = 16 : 2
b = 8
a = 8+82
a = 90
a+b=98
a-b=82
a=b+82
b+82+b=98
2b+82=98
2b=98-82
2b=16
b=16:2
b=8
a=8+82
a=90