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x in (-oo:+oo)
8*x-((3/8)*x) = 2 // - 2
8*x-((3/8)*x)-2 = 0
8*x+(-3/8)*x-2 = 0
61/8*x-2 = 0 // + 2
61/8*x = 2 // : 61/8
x = 2/61/8
x = 16/61
x = 16/61
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