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x in (-oo:+oo)
-((11/2)*x)-7 = -4 // + 4
4-((11/2)*x)-7 = 0
(-11/2)*x-7+4 = 0
-11/2*x-3 = 0 // + 3
-11/2*x = 3 // : -11/2
x = 3/(-11/2)
x = -6/11
x = -6/11
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