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12*(-x-2) = 15*((1/3)*x-8) // - 15*((1/3)*x-8)
12*(-x-2)-(15*((1/3)*x-8)) = 0
12*(-x-2)-15*((1/3)*x-8) = 0
12*(-x-2)-15*(1/3*x-8) = 0
12*(-x-2)-15*(1/3*x-8) = 0
96-17*x = 0
96-17*x = 0
96-17*x = 0 // - 96
-17*x = -96 // : -17
x = -96/(-17)
x = 96/17
x = 96/17
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