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x in (-oo:+oo)
(3/5)*x-(2*(1-(3*x))) = 11 // - 11
(3/5)*x-(2*(1-(3*x)))-11 = 0
(3/5)*x-2*(1-3*x)-11 = 0
(3*x)/5-2*(1-3*x)-11 = 0
(-2*5*(1-3*x))/5+(3*x)/5+(-11*5)/5 = 0
3*x-2*5*(1-3*x)-11*5 = 0
33*x-55-10 = 0
33*x-65 = 0
(33*x-65)/5 = 0
(33*x-65)/5 = 0 // * 5
33*x-65 = 0
33*x-65 = 0 // + 65
33*x = 65 // : 33
x = 65/33
x = 65/33
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