Răspuns :
____ +35 primul numar
____ al doilea nr, deoarece 75-40=35
le adun si
____l____+35=195
____l____=195-35
____l____=160
deci ____l =160/2 =80
____ al doilea nr, deoarece 75-40=35
le adun si
____l____+35=195
____l____=195-35
____l____=160
deci ____l =160/2 =80
a+b=195
a+75=b+40 => a=b+40-75=b-35
b-35+b=195
2b=195+35=230
b=115
a=115-35=80
Verificare: 80+115=195
a+75=b+40 => a=b+40-75=b-35
b-35+b=195
2b=195+35=230
b=115
a=115-35=80
Verificare: 80+115=195