the value of x for expression (5/7)^-4 × (5/7) 3x= (7/5)^-5 is
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just simply use BODMAS rule of math and solve this question
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x+7+4(x−5)=x+7+4x−20=x+4x+7−20
=5x−13
=5×2−13 [Putting x=2]
=10−13
=−3.
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