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30 November, 13:20

What is the solution to the equation 7^3x=9?

0.376

0.295

-0.295

-0.376

+2
Answers (1)
  1. 30 November, 13:29
    0
    7^ (3x) = 9 take the natural log of both sides

    3xln7=ln9 divide both sides by 3ln7

    x=ln9 / (3ln7)

    x≈0.376
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