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8 February, 21:46

For whаt vаluе оf x does 3^4 х = 27^x-3?

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  1. 8 February, 22:09
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    x = - 9

    Step-by-step explanation:

    3^4 х = 27^ (x-3)

    Replace 27 with 3^3

    3^4 х = 3^3^ (x-3)

    We know that a^b^c = a^ (b*c)

    3^4 х = 3^ (3 (x-3))

    Since the bases are the same, the exponents are the same

    4x = 3 (x-3)

    Distribute

    4x = 3x-9

    Subtract 3x from each side

    4x-3x = 3x-3x-9

    x = - 9
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