Răspuns :
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
coroana?
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
coroana?
a+b=98
a-b=82 ---> b = a + 82
a,b=?
a --------
b -------_ 82
2a = 98-82
2a = 16
a = 16 : 2
a = 8
b = 8 + 82
b = 90
verificare:
a + b = 98
8 + 90 = 98