Question

cho hoi 5.(x-7)bang0

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Answer 1

5 . ( x - 7 ) = 0

x - 7 = 0 x 5 

x - 7 = 0 

x = 0 + 7 

x = 7

Answer 2

5 . ( x -7 ) = 0

x - 7 = 0 : 15

x - 7 = 0

x = 0 + 7

x = 7

Answer 3

5 : ( x - 7 ) = 0 

     x - 7 = 0 x 5

     x - 7 = 0 

     x = 0 + 7

     x = 7 

         

Answer 4

5 : ( x - 7 ) = 0

x -7           =  5 : 0

x               = 0 + 7 

x               = 7