Răspuns :
a+(a+2)+(a+4)+(a+6)=164
4a+12=164
4a=164-12
4a=152
a=152:4
a=38
38,40,42,44 numerele cautate
4a+12=164
4a=164-12
4a=152
a=152:4
a=38
38,40,42,44 numerele cautate