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x in (-oo:+oo)
4-((3/2)*x) = 23 // - 23
4-((3/2)*x)-23 = 0
(-3/2)*x-23+4 = 0
-3/2*x-19 = 0 // + 19
-3/2*x = 19 // : -3/2
x = 19/(-3/2)
x = -38/3
x = -38/3
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