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=> Jawab :C.) 25 - 4y = 6y + 15
25 - 15 = 6y + 4y
10 = 10y
y = 10/10 = 1
D.) 1/3 (x - 2) = 2/3x - 13/3
1/3x - 2/3 = 2/3x - 13/3
Dikali 3 semua penyebutnya.
x - 2 = 2x - 13
x - 2x = (-13) + 2
-x = - 11
x = 11
Maaf jika salah. Semoga membantu ^_^