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x in (-oo:+oo)
(3/16)*x+3/8 = 1/8 // - 1/8
(3/16)*x+3/8-(1/8) = 0
(3/16)*x+3/8-1/8 = 0
3/16*x+1/4 = 0 // - 1/4
3/16*x = -1/4 // : 3/16
x = -1/4/3/16
x = -4/3
x = -4/3
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