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(5*x)/2-x = x/6-(8/3) // - x/6-(8/3)
(5*x)/2-x-(x/6)+8/3 = 0
4/3*x+8/3 = 0 // - 8/3
4/3*x = -8/3 // : 4/3
x = -8/3/4/3
x = -2
x = -2
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