Răspuns :
a
2a+1
2(2a+1)+1=4a+2+1=4a+3
=========================(+)
a+2a+1+4a+3=613
7a+4=613
7a=609
a=87
deci numerele vor fi 87
2*87+1=175
4*87+3=351
87+175+351=613 ADEVARAT
2a+1
2(2a+1)+1=4a+2+1=4a+3
=========================(+)
a+2a+1+4a+3=613
7a+4=613
7a=609
a=87
deci numerele vor fi 87
2*87+1=175
4*87+3=351
87+175+351=613 ADEVARAT
1 nr-x
2 nr-2x+1
3 nr-4x+3
x+2x+1+4x+3=613
7x=613-4
7x=609
x=609:7=87
1 nr-87
2 nr-87*2+1=175
3 nr-87*4+3=351
2 nr-2x+1
3 nr-4x+3
x+2x+1+4x+3=613
7x=613-4
7x=609
x=609:7=87
1 nr-87
2 nr-87*2+1=175
3 nr-87*4+3=351