never_know_myself

u can rearrange this to a | 99 | a*e | a*f ------------------ b | 132 | b*c | b*f ------------------ c | 110 | 154 |187 ---------------------- | d | e | f now we take the common multiplier for the 1st column which is 11 (11*9 = 99, 11* 12 = 132, 11* 10 = 110) if(c*d) = 110 and we know d = 11, then c = 10 which should be the common multiplier for the bottom row so now e = 154/ 10 = 15.4 f = 187/10 = 18.7 with e &f the full matrix become, 99 143.1 168.3 132 184 224.4 110 154 187 now if u re arrange this back u'll get 143.1 99 168.3 154 110 187 184 132 224.4