(2/3)^x(9/8)^x=27/64

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(2/3)^x(9/8)^x=27/64

(2/3)^x(9/8)^x=27/64
(2/3)^x(9/8)^x=27/64

(2/3)^x(9/8)^x=27/64
(2/3*9/8)^x=27/64
(3/4)^x=27/64
x=3