Răspunsuri

2014-09-06T11:06:37+03:00
Primii 4 multipli: 147,140,133,126

Cel mai inteligent răspuns!
2014-09-06T12:03:14+03:00
7*x+7*(x+1)+7*(x+2)+7*(x+3)=154
7x+7x+7+7x+14+7x+21=154
28x+42=154
28x=154-42
28x=112
x=4
verificare: 7*4+7*5+7*6+7*7=28+35+42+49=154
1 5 1