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x in (-oo:+oo)
x-((3/2)*x)+4*x+3+5 = 0
x+(-3/2)*x+4*x+3+5 = 0
7/2*x+8 = 0 // - 8
7/2*x = -8 // : 7/2
x = -8/7/2
x = -16/7
x = -16/7
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