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ehidna [41]
3 years ago
7

Can you show me how to solve this problem: a. ) 16=4 to the 3rd power x -7

Mathematics
1 answer:
Ghella [55]3 years ago
7 0
We assume you mean
\ \ \display{16=4^{3x-7}}
This is solved by writing 16 as a power of 4 and equating exponents.
\ 4^{2}=4^{3x-7}
  2 = 3x - 7 . . . . . equate exponents
  9 = 3x . . . . . add 7
  3 = x . . . . . divide by 3

The solution is x = 3.
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