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x in (-oo:+oo)
(6/4)*x-(2/4) = -5/2 // + -5/2
(6/4)*x-(2/4)-(-5/2) = 0
(6/4)*x-1/2+5/2 = 0
3/2*x+2 = 0 // - 2
3/2*x = -2 // : 3/2
x = -2/3/2
x = -4/3
x = -4/3
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