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x-(2*x)-(5/3)+3/9 = x+2/6 // - x+2/6
x-(2*x)-x-(5/3)+3/9-(2/6) = 0
x-2*x-x-5/3+3/9-1/3 = 0
-2*x-5/3 = 0 // + 5/3
-2*x = 5/3 // : -2
x = 5/3/(-2)
x = -5/6
x = -5/6
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