afla numarul necunoscut. 9180-m=659,n-489=7741

Răspuns :

m=9180-659
m=8521
n=7741+489
n=8230
9180-m=659
m=9180-659
m=8521
verificare:9180-8521=659


n-489=7741
n=7741+489
n=8230
verificare:8230-489=7741