Răspuns :
[tex](65*502:10-c-63):3=600 \\ 32630:10-c-63=1800 \\ 3263-c=1863
\\ c=3263-1863 \\ c=1400
[/tex]
(32 630:10-c-63):3=600
(3 263-c-63):3=600
(3 263-c-21=600
3 263-c=600+21
=621
c=3 363+621
=3984
(3 263-c-63):3=600
(3 263-c-21=600
3 263-c=600+21
=621
c=3 363+621
=3984