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Solve as directed : x/2 + 7/2 lt 3x-1 in R |
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Answer» SOLUTION :x/2 + 7/2 `lt` 3x-1 `rArr (3x + 14)/6 lt (3x-1)` `rArr 3x + 14 lt 18x - 6` `rArr 3x -18x lt -6-14` `rArr -15x lt -20 `rArr (-15x)/(-15) gt (-20)/(-15)` `rArr x gt 4/3` If x `in` R , the solution SET is S = (4/3 , `INFTY`) = {x:x `in` R and x`gt` 4/3} |
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