find the value of x (2/3)^x (3/2)^2x = 81/16
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(2/3)^x (3/2)^2x=(2/3)^x(2/3)^(-2x)
=(2/3)^(-x)
=(3/2)^x
(3/2)^x=(3/2)^4
x=4
=(2/3)^(-x)
=(3/2)^x
(3/2)^x=(3/2)^4
x=4
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