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Answer:
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Answer:
-3 is answer
(7/3)^-4 x (7/3)^-5 = (7/3)^3x
(7/3)^-4+(-5)=(7/3)^3x
(7/3)^9=(7/3)^3x
9=3x
9/3=x
3=x
proved!
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