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2a + 2b = 52.
DIT : cari lah nilai A dan B ?
JAWAB : eleminasi menjadi
2a - 2b = 4
-2a - 2b = - 52
______________-
4a = 56
a = 56/4 =14 .
lalu mencari nilai B =
2a + 2b = 52
28 + 2b = 52
2b = 52 - 28
2b = 24
b = 24/2= 14
jadi nilai a dan b adalah 14 dan 14