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-4*x-(2/3) = -122/3 // + -122/3
-4*x-(2/3)-(-122/3) = 0
122/3-4*x-2/3 = 0
40-4*x = 0 // - 40
-4*x = -40 // : -4
x = -40/(-4)
x = 10
x = 10
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