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19 May, 13:01

Log (4x+2) - 2log (3) + = 1

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  1. 19 May, 13:21
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    Log (4x+2) - 2log (3) = 1

    log (4x+2) - log 3²=1 (b*logva x=logva x^b)

    log (4x+2) - log 9=1 (logva b - logva c=logva (b/c))

    log (4x+2) / 9=1 ⇔10¹ = (4x+2) / 9

    (4x+2) / 9=10

    4x+2=90

    4x=90-2

    4x=88

    x=88/4

    x=22

    Answer: x=22
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