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x/2 + 3 > x/3 - 5/3
x/2 - x/3 > -5/3 - 3
6*(x/2) - 6(x/3) > 6(-5/3) - 3*6
3x - 2x > -10 - 18
x > - 28
x ∈ (-28, +∞]
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4x/5 < 2x+1
5(4x/5) < 5*2x + 5*1
4x < 10x +5
4x - 10x < 5
-6x < 5
-6x/-6 > 5/-6
x > - 5/6 cambio de la desigualdad porque se divide para un número negativo (propiedad de las desigualdades).
x ∈ (- 5/6 , +∞]