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14 January, 04:02

What is 6-4 (6b 7) >122?

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  1. 14 January, 07:17
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    Assuming the radical between 6b and 7 to be +.

    6-4 (6b + 7) >122

    6 - 4*6b - 4*7 > 122

    6 - 24b - 28 > 122

    -24b > 122 + 28 - 6

    -24b > 144 When you divide by a - ve number the inequality sign reverses

    b < 144/-24

    b < - 6
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