Răspuns :
a+a+1+a+2+a+3=618
4a+6=618
4a=618-6
4a=612
a=153 nr mic
b=154
c=155
d=156
4a+6=618
4a=618-6
4a=612
a=153 nr mic
b=154
c=155
d=156
a+b+c+d=618
b=a+1
c=a+2
d=a+3
a+a+1+a+2+a+3=618
4xa=618-6
4xa=612
a=612:4
a=153 primul nr. sau numarul mic
b=a+1
c=a+2
d=a+3
a+a+1+a+2+a+3=618
4xa=618-6
4xa=612
a=612:4
a=153 primul nr. sau numarul mic