Page 18 - DIGITAL BOOK MUHAMMAD AZWARDI NASUTION
P. 18
) 1 U = 11→ a + 9 b = 11
10
U = − 3 → a + 2 b = − 3 −
3
7b = 14
b = 2
a + 2 b = − 3
a + 2 . 2 = − 3
a = − 3 − 4
a = − 7
