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(1/3)*x-(2*x)-4 = 43/3 // - 43/3
(1/3)*x-(2*x)-(43/3)-4 = 0
(1/3)*x-2*x-43/3-4 = 0
-5/3*x-55/3 = 0 // + 55/3
-5/3*x = 55/3 // : -5/3
x = 55/3/(-5/3)
x = -11
x = -11
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