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x in (-oo:+oo)
(10/4)*(x-1) = 2-x // - 2-x
(10/4)*(x-1)+x-2 = 0
5/2*(x-1)+x-2 = 0
5/2*(x-1)+x-2 = 0
7/2*x-5/2-2 = 0
7/2*x-9/2 = 0
7/2*x-9/2 = 0
7/2*x-9/2 = 0 // + 9/2
7/2*x = 9/2 // : 7/2
x = 9/2/7/2
x = 9/7
x = 9/7
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