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a) -(6 - 5x) + 6 >= 3
..... -6 + 5x + 6 >=3
....................5x >= 3
.....................x >= 3/5
b) - (-6 + 5x) + 6 >= 3
......6 - 5x + 6 >=3
...........12 - 5x >=3
...............- 5x >= 3 - 12
..................x <= - 9 / -5
..................x <= 9/5
Respuestas: 3/5 <= x >= 9/5
Intervalo: [3/5, 9/5]
.Gráfico:
(-infi)<__________[/_/_/__/__/__/__/__/__/__/__]__________________>+infi
.........................3/5......................................9/5..............................
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