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15 April, 02:33

Solve for z.

In 63 = ln z + In 7

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Answers (1)
  1. 15 April, 06:18
    0
    ln (z) + ln (7) is the same as ln (7z).

    So

    ln (63) = ln (7z).

    Take the antilog of each side:

    63 = 7z

    Divide each side by 7:

    z = 9
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