Răspuns :
n:7 =1rest 6
n=1x7+6⇒ n=13
n:7=2 rest 6
n=2x7+6 ⇒ n=20
n:7=3 rest 6
n=3x7+6 ⇒ n=27
n:7=4 rest 6
n=4x7+6 ⇒ n=34
n:7=5 rest 6
n=5x7+6 ⇒ n=41
13+20+27+34+41=135
n=1x7+6⇒ n=13
n:7=2 rest 6
n=2x7+6 ⇒ n=20
n:7=3 rest 6
n=3x7+6 ⇒ n=27
n:7=4 rest 6
n=4x7+6 ⇒ n=34
n:7=5 rest 6
n=5x7+6 ⇒ n=41
13+20+27+34+41=135
n:7 =1rest 6
n=1x7+6
n=13
n:7=2 rest 6
n=2x7+6
n=20
n:7=3 rest 6
n=3x7+6
n=27
n:7=4 rest 6
n=4x7+6
n=34
n:7=5 rest 6
n=5x7+6
n=41
↓ REZULTATUL FINAL:
→ → ↓
13+20+27+34+41=135
n=1x7+6
n=13
n:7=2 rest 6
n=2x7+6
n=20
n:7=3 rest 6
n=3x7+6
n=27
n:7=4 rest 6
n=4x7+6
n=34
n:7=5 rest 6
n=5x7+6
n=41
↓ REZULTATUL FINAL:
→ → ↓
13+20+27+34+41=135