Question
Find the value of ‘x’ in the given
expression (49/16)x × (64/343)x-1 = 4/7Solution
(49/16)x × (64/343)(x-1) = 4/7 ⇒(7/4)2x × (4/7)(3x-3) = 4/7 ⇒(4/7)(-2x) × (4/7)(3x-3) = 4/7 ⇒ -2x+3x-3=1 ⇒ x = 4
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