Explicación paso a paso:
de 9x + 287 ≤ 431
9x ≤ 431-287
9x ≤ 144
x ≤ 144/9
x ≤ 16
c.s <-∞, 16]
Las cantidades pueden ser:
-∞,..........14,15,16
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Explicación paso a paso:
de 9x + 287 ≤ 431
9x ≤ 431-287
9x ≤ 144
x ≤ 144/9
x ≤ 16
c.s <-∞, 16]
Las cantidades pueden ser:
-∞,..........14,15,16