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-5 le (2-3x)/4 le 9...

`-5 le (2-3x)/4 le 9`

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We have, ` -5 le (2-3x)/4`
`rArr -20 le 2-3x` [multiplying by 4 on both sides]
`rArr 3x le 2+20`
`rArr 3x le 22`
`rArr x le (22)/3`
and `(2-3x)/4 le 9`
`rArr 2-3x le 36`
`rArr 2- 3x le 36-2`
`rArr -3x le 34`
`rArr 3x ge - 34`
`rArr x ge - (34)/3`
`rArr -(34)/3 le x le (22)/3`
`rArr x ni [(-34)/3,(22/3]`
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