(-5/7)-4*(-5/7)12  ={(-5/7)3}x*(-5/7)-1   . Find the value of x.

Dear student
-57-4×-5712=-573x×-57-1-57-4+12=-573x+-1   Since am×an=am+n-578=-573x-1On comparing, we get8=3x-13x=9x=3
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