jasminetrevinop8b8sd
jasminetrevinop8b8sd
06-05-2018
Mathematics
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graph x+3<1/2(4x-12)<20
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gmany
gmany
12-05-2018
[tex]x+3 < \dfrac{1}{2}(4x-12) < 20\\\\x+3 < 2x-6 < 20[/tex]
[tex]x+3 < 2x-6\ \wedge\ 2x-6 < 20\\\\x-2x < -6-3\ \wedge\ 2x < 20+6\\\\-x < -9 \ \wedge\ 2x < 26\\\\x > 9\ \wedge\ x < 13[/tex]
Look at the picture.
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