Diketahui SPLTV berikut 10x-5y+3z = -41 8x+6y+5z = 18 6x+3y+z = -13 Tentukan : a.Himpunan Penyelesaian SPLTV b.Nilai x-y+z

10x-5y+3z=-41. (6) 8x+6y+5z=18 (3)
8x+6y+5z=18. (5) 6x+3y+z=-13. (6)
___________ __________
60x-30y+18z=-246. 24x+18y+15z=54
40x+30y+25z=90. 36x+18y+6z=-78
______________ + ____________ -
100x+43z=-156. -8x+9z=132

100x+43z=-156(8)
-8+9z= 132(100)
____________
800x+344z=-1248
-800x+900z=13200
_______________+
1244z=11952

-8x+9z=132
-8x+9(1244)=11952
-8x+11196=11952
-8x=756
x=756/-8
x=94.5