Răspuns :
a+b+c+d=26
a,b,c,d consecutive=> b=a+1,c=a+2,d=a+3
a+a+1+a+2+a+3=26
4a+6=26
=>4a=20
=>a=5,b=6,c=7,d=8
a,b,c,d consecutive=> b=a+1,c=a+2,d=a+3
a+a+1+a+2+a+3=26
4a+6=26
=>4a=20
=>a=5,b=6,c=7,d=8