8y - 5x - 5y + 6 - x - 6
1181160
22329564
20100416
3898208
4202896
3316895
91419367173453
6359791.91845993056
.8049172331135
123528471836816098
3...
.8049
172331135
123528471836816098 ...
3=k18
6359791.9184
5993056.8049
(4x+5)³
25/2% of 625
1235284718368
1609...
( x + 2y + z = 3 ) ( 2x + 5y - z = -4 ) ( 3x - 2y + z = 5 ) by using gaussian elemination method