Question
(64/25)? × (125/512) ? - 1  =
5/8Solution
⇒  (8/5)2x  × (5/8) 3x - 3  = 5/8 ⇒  (5/8) -2x  × (5/8) 3x - 3  = 5/8 ⇒  (5/8) -2x + 3x - 3 = 5/8 ⇒  (5/8) x - 3  = 5/8 ⇒  x - 3 = 1 ⇒  x = 4Â
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