A. a+237x18=6340
a+4266=6340
a=6340-4266
a=2074
B. b-512x11=1130
b-5632=1130
b=5632+1130
b=6762
C. 241x39-c=189
9398-c=189
c=189-9398
c=-9209
daca nu e corect la C nu te supara
D.513x9+d=7349
4617+d=7349
d=7349-4617
d=2732
SPER CA TE AM AJUTAT
BAFTA LA SCOALA :D