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x in (-oo:+oo)
(1/3)*(x-4) < (1/8)*(3*x-1) // - (1/8)*(3*x-1)
(1/3)*(x-4)-((1/8)*(3*x-1)) < 0
(1/3)*(x-4)+(-1/8)*(3*x-1) < 0
1/3*(x-4)-1/8*(3*x-1) < 0
1/3*(x-4)-1/8*(3*x-1) < 0
-1/24*x-29/24 < 0
-1/24*x-29/24 < 0
-1/24*x-29/24 < 0 // + 29/24
-1/24*x < 29/24 // : -1/24
x > 29/24/(-1/24)
x > -29
(-oo:-29) (-29:+oo) -1/24*x-29/24 + -
x in (-29:+oo)
(-29:+oo)
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