Explicație pas cu pas:
a × b = 1768 => b = 1768 / a
b × c = 832 => b = 832 / c
a - c = 9 => a = c + 9
b = 1768 / ( c + 9 ) |
| => 1768 / ( c + 9 ) = 832 / c
b = 832 / c | (c+9) × 832 = 1768 c
832 c + 7488 = 1768 c
936 c = 7488
c = 8
a - c = 9
c = 8 => a = 8 + 9 => a = 17
b = 832 / c = 832 / 8 => b = 104
