(5/7)^-3×(5/7)^-11=(5/7)^7×^x
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(5/7)^-3×(5/7)^-11=(5/7)^7×^x
(5/7)^-3+(-11) = (5/7)^7*^x
(5/7)^-3-11. = (5/7)^7x
(5/7)^-14. = (5/7) ^7*-2
(5/7)^-14. = (5/7)^-14
then , x = -2
hope it helps u
(5/7)^-3+(-11) = (5/7)^7*^x
(5/7)^-3-11. = (5/7)^7x
(5/7)^-14. = (5/7) ^7*-2
(5/7)^-14. = (5/7)^-14
then , x = -2
hope it helps u
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