December 2018 1 68 Report
X + 5y + 2z= -a-b-c (1)
3x - y + 4z= 5a + b (2)
2x + y + 5z = 6a + 1 (3)
Jika hp = -2, ,3 ,4 Nilai 2a+b+3c adalah....
A. 9
B. 15
C. 17
D. 19
E. 24
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