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x in (-oo:+oo)
x-(2/4)-6 = x/12 // - x/12
x-(x/12)-(2/4)-6 = 0
x-(x/12)-1/2-6 = 0
11/12*x-13/2 = 0 // + 13/2
11/12*x = 13/2 // : 11/12
x = 13/2/11/12
x = 78/11
x = 78/11
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