Răspuns :
Notam cu x numarul
[(x+476)-328]:3=83
(x+476)-328=83*3
(x+476)-328=249
x+476=249+328
x+476=577
x=577-476
x=101
[(x+476)-328]:3=83
(x+476)-328=83*3
(x+476)-328=249
x+476=249+328
x+476=577
x=577-476
x=101
Explicație pas cu pas:
not nr initial cu x
[(x+476)-328]:3=83
[(x+476)-328]=249
x+476=577
x=101