Răspuns :
1000-700:5:10-6x66=j+490
1000-140:10-396=j+490
1000-14-396=j+490
986-396=j+490
590=j+490
j=590-490
j=100
proba:1000-700:5:10-6x66=100+490
1000-140:10-396=590
1000-14-396=590
986-396=590
590=590
1000-140:10-396=j+490
1000-14-396=j+490
986-396=j+490
590=j+490
j=590-490
j=100
proba:1000-700:5:10-6x66=100+490
1000-140:10-396=590
1000-14-396=590
986-396=590
590=590
1000-700:5:10-6x66=j+490
1000-140:10-396=j+490
1000-14-396=j+490
986-396=j+490
590=j+490
590-490=j
100=j
1000-140:10-396=j+490
1000-14-396=j+490
986-396=j+490
590=j+490
590-490=j
100=j