inecuaciones lineales
[tex]1 < 2 \times + 3 < 9[/tex]
[tex]1 < 2 \times + 3 < 9[/tex]
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Respuesta:
1 < 2x + 3 < 9
1 < 2x + 3
1 - 3 < 2x
-2 < 2x
-2/2 < x
-1 < x
2x + 3 < 9
2x < 9 - 3
2x < 6
x < 6/2
x < 3
(-1 ; 3)
Explicación paso a paso: