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x in (-oo:+oo)
11*x-(3/20) = 19/20 // - 19/20
11*x-(3/20)-(19/20) = 0
11*x-3/20-19/20 = 0
11*x-11/10 = 0 // + 11/10
11*x = 11/10 // : 11
x = 11/10/11
x = 1/10
x = 1/10
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