Răspuns :
[tex]a-b=795 \\ a:b=7\ \ rest\ \ 15=>a=7b+15 \\ \\ 7b+15-b=795 \\ 6b+15=795 \\ 6b=780 \\ b=130 \\ \\ a=7*130+15 \\ a=925[/tex]
a - b = 795
a : b = 7 rest 15
a = 7b + 15
7b + 15 - b = 795
6b = 795 - 15
6b = 780
b = 780/6
b = 130
a = 795 + 130
a = 925
a : b = 7 rest 15
a = 7b + 15
7b + 15 - b = 795
6b = 795 - 15
6b = 780
b = 780/6
b = 130
a = 795 + 130
a = 925