Răspuns :
a +a+1 + a+2 +a+3 =46
4a +6 =46
4a =46-6 =40
a =10
a+1 =101+1 =11
a+2 =10+2 =12
a+3 =10+3 =13
v ; 10+11+12+13 =46
4a +6 =46
4a =46-6 =40
a =10
a+1 =101+1 =11
a+2 =10+2 =12
a+3 =10+3 =13
v ; 10+11+12+13 =46