-15 -3 3 15 Pls help idk this

Mathematics

2 answers:

kykrilka [37]3 years ago

5 0

Answer:

-3

Step-by-step explanation:

4^x = (1/8)^(x+5)

(2^2)^x = (2^-3)^(x+5)

2^2x = 2^(-3x - 15)

Since both sides have the same base of 2, then the exponents are equal

2x = - 3x - 15

5x = -15

x = -3

Anna11 [10]3 years ago

4 0

Answer:

-3

Step-by-step explanation:

see attached

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