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a+7b+a+11b=52
U16=?
eliminasi
a+4b=11 dikali 2:
2a+8b=22
2a+18b=52
dikurangi:
-10b=-30
b=3
a=-1
U16=a+15b = -1 + 15(3)= -1 + 45 = 44
U8 + U12 = 52
a + 7b + a + 11b = 52
2a + 18b = 52
Metode eleminasi subsitusi
a + 4b = 11 | dikali 2
2a + 18b = 52 | dikali 1
2a + 8b = 22
2a + 18b = 52
------------------ -
-10b = -30
b = 3
a + 4b = 11
a + 12 = 11
maka a = -1
U16 = a + 15b
= -1 + 15(3) = 44