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Answer :

Answer:

I think it's -12.

Step-by-step explanation:

Answer:

-12

Step-by-step explanation:

16^×=64^×+4

4^2×=4^3(×+4)

since the root are the same you cut it it.

2× =3×+12

2x-3x=12

-x=12

divide both side by -1

x=-12