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Verified answer
Ini jawaban no. 15 ..........Verified answer
X gab = x1.n1 - x2.n2 / n1 + n26,2 = 21×6 - x2.1 / 21 + (-1)
6,2 = 126 - x2 / 20
124 = 126 - x2
x2 = 126 - 124
x2 = 2
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