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x in (-oo:+oo)
-8/5 = (1/3)*x-(1/2) // - (1/3)*x-(1/2)
1/2-((1/3)*x)-8/5 = 0
(-1/3)*x-8/5+1/2 = 0
-1/3*x-11/10 = 0 // + 11/10
-1/3*x = 11/10 // : -1/3
x = 11/10/(-1/3)
x = -33/10
x = -33/10
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