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(-2/3)*(6*x-27) = 4 // - 4
(-2/3)*(6*x-27)-4 = 0
-2/3*(6*x-27)-4 = 0
-2/3*(6*x-27)-4 = 0
14-4*x = 0
14-4*x = 0
14-4*x = 0 // - 14
-4*x = -14 // : -4
x = -14/(-4)
x = 7/2
x = 7/2
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