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9x - (x + 2) ≤ 3x + 6
9x - x - 2 ≤ 3x + 6
8x - 2 ≤ 3x + 6
8x - 3x ≤ 6 + 2
5x ≤ 8
x ≤ 8/5
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0 8/5
Solución.
x∈(- infinito , 8/5]