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x in (-oo:+oo)
(3/4)*(x-(3/10)) = 27/16 // - 27/16
(3/4)*(x-(3/10))-(27/16) = 0
(3/4)*(x-3/10)-27/16 = 0
3/4*(x-3/10)-27/16 = 0
(3/4*16*(x-3/10))/16-27/16 = 0
3/4*16*(x-3/10)-27 = 0
12*x-153/5 = 0
(12*x-153/5)/16 = 0
(12*x-153/5)/16 = 0 // * 16
12*x-153/5 = 0
12*x-153/5 = 0 // + 153/5
12*x = 153/5 // : 12
x = 153/5/12
x = 51/20
x = 51/20
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