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x in (-oo:+oo)
7*x+2/3 = x+110/3 // - x+110/3
7*x-x+2/3-(110/3) = 0
7*x-x+2/3-110/3 = 0
6*x-36 = 0 // + 36
6*x = 36 // : 6
x = 36/6
x = 6
x = 6
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