Find the value of (x/y) if (5/7)^-7*(21/35)^-7= (x/y)^-7
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Step-by-step explanation:
(5/7)^-7*(21/35)^-7=(x/y)^-7
(5/7)^-7*(3/5)^-7=(x/y)^-7
(5/7*3/5)^-7=(x/y)^-7
(3/7)^-7=(x/y)^-7
x/y=3/7
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