Răspuns :
a) m+(9436-7550)=3555 m+1886=3555 m=3555-1886 m=1669
b) (9436-2777)-n=2879 6659-n=2879 n=6659-2879 n=3780
b) (9436-2777)-n=2879 6659-n=2879 n=6659-2879 n=3780