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23-10-2018
Mathematics

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Solve the system of inequalities: |4v-9|< 27
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23-10-2018

[tex]|4v-9| < 27\iff4v-9 < 27\ \wedge\ 4v-9 > -27\qquad|+9\\\\4v < 36\ \wedge\ 4v > -18\qquad|:4\\\\v < 9\ \wedge\ v > -4.5\to v\in(-4.5,\ 9)[/tex]

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